I also face this kind of ad showing problem.
Ads are annoying !!!!
I turned off "Lock Screen News" also turned off "Start Page Content" and turned off "News Notification"
But still I'm getting those annoying news ads.

Opera Mini disappoints us. Thumbs Down. Booooo !!!!!

@hari120
And this poor adblocking issue was reported to Opera at least 2 years ago back then. But Opera developers doesn't give a s***t. They simply don't care. Maybe because Opera becomes a poor chinese ad company now. Because the company is owned by poor chinese.
Opera for Android, Opera Mini, Opera for Desktop all suffer this ad blocking issue.

Opera for Android & Opera Mini's ad blocking is crap.

Opera Mini has so many problems. Day by day it's getting worse.
Now it's bloated with totally dumb unnecessary feature like 'File Sharing'.
Can't able to block any single ad via Automatic & High saving mode and yet they claim it's an ad blocking browser.
Has frequent page loading problem.

In PC version of Opera there has an option to render webpages as per user's selected font. Like customize Serif & Sens-Serif font to render the webpages with those selected fonts.
But here in on android version there has no feature like this. And I don't like default font (Noto Sans) which was set & pre-defined by Google. Webpages seems ugly when it's rendered based on this font.
There's a browser named UC Mini that can use any font to render the webpages. If I place any font in the browser created storage (place a font in the browser created font folder) then all the webpages can use & utilize the font, and render webpages by that following font.
So, I request to the Developer team that consider to add a feature where we can use our own choosen font & webpages can render based on the customized font as like the PC version of Opera.
Thanks.

@mbaluta
Hey, I've some words to say.
Previous version (7.6) Old Opera Mini has one useful copy-paste system that is still new Opera Mini has missing that features.
It's the Dialogue Box Copy system.
Here it is:-

• From Old Opera Mini:-
  If I write anything to a dialogue box. Then move cursor out of dialogue box. Then I can copy the whole dialogue box content by just long press and then select copy. So Easy..
  But on new Opera Mini:-
  If I write anything to a dialogue box & move cursor out of it (means I press back button) & then if I have to copy the whole dialogue box content then firstly I've to enter that dialogue box. Then long press & hold on. Then select all from the upper right corner icon. Then Copy.. Too Complicated.
  On newer version I just can't copy the whole dialogue box writings with just simply press-hold-copy like the previous old Opera Mini. Newer version has only paste option by pressing long on any box. But doesn't have copy option.
  So, for just Copy-Paste mechanism. Old Opera Mini is still better than new One.

Facing problem on Facebook using Opera Mini.

In "High Mode" on Facebook. If I press top right side button then that 'Facebook Setting' page doesn't come up. Moreover, I can't go to my Timeline, Can't go to Facebook Account settings.
After pressing that button Opera Mini just stuck & can't load that following page.
in Extreme mode its OK.
But while in Extreme mode, I can't able to share any YouTube videos from YouTube to Facebook. From YouTube website If I share any Video to Facebook It ends with an Error Message.

Day by day, Opera Mini becomes a piece of shit..
Fix those problems ASAP.

N.B- I'm on Samsung Galaxy J7 (Android 5.1.1) Using both latest Opera Mini 30 & beta 31 on 3G (HSPA+) network connection.

It's a problem from Opera's side. Opera's Ad blocker is totally broken.
I use Opera Mini too. In there, Opera Mini can not able to block any single ad though I've turned ON Ad blocker (In Automatic/High mode) And now this ad blocking problem seems on Opera browser too. This problem is everywhere.. & Opera's developers are sleeping as usual. Bugs & Problems are not a concern for them.
I wonder, all of a sudden the developers will wake up from sleep then will announce some Design changing, User Interface, Icon, Color changing s**t in the next version release of their browser instead of problem & bug fixing and optimization.

Font Problem is solved in the next update of beta.
But still there's "Video Boost" option missing.

@mbaluta
@olasia
@miyukiwork

Please take a view on Facebook problem.

Moreover, I can't enter to my Opera Account inside Opera Mini. Opera Sync feature From Opera Mini's settings "Sign into Opera" section. I give my username & password. Then it shows
"Temporary Server Error. Please try again Later"
Fix this problem too.

@miyukiwork
Why Opera doesn't provide more options from opera://flags ???????

In all other Chromium browser a whole list of Flags menu is available. But Opera provides only 3 or 4 options at best. Why??????
Add more options & Let us customize the browser as per our choice.

@leocu You should use "Tor Browser" then. In the Tor network all your activities will be hidden. It is the best way so far. It's available on all platforms.

Else, you can try some free VPN. But beware most of the free VPN are actually crap. The only VPN I'd recommend are "ProtonVPN" or "IVPN" or "Mullvud VPN". These all are reputated. ProtonVPN offers free servers but these are slow. I'd prefer Proton as first choice.

But still the best way you can go for is using the "Tor Browser".

Opera Mini take hell lot of time at startup to load the Opera Mini.
I'll attach snapshots.

Picture 1:- Instant state after I open Opera Mini. (Totally Blank)

Picture 2: Second state of UI. (Speed Dials loading but takes time)

Picture 3:- My final interface, fully loaded all the speed dials. (After a lot of time, Opera Mini can be usable).

I'm using latest Opera Mini 61 on Android 8.1
Re-installing Opera Mini doesn't solve the problem.
Please, take it a view & fix this.
Thanks.

@bensteele
There has no single way to stop Full Screen Interstitital ad in Opera Mini.

Opera Devs forced us to this ad.
Poor Opera.

@leocg
Yes, that's what I mean.
Now Opera Mini can't do it.
Everytime I tried to take a snapshot in incognito mode it shows an error with 'The app I use (means Opera Mini) forbade the screenshot capture.

Without incognito mode, it's fine & working as usual.

In previous Opera Mini can take screenshots in Private/Incognito mode. But not anymore. I browse Private/Incognito mode a lot & I also need to take screenshot in incognito mode too.
Can you guys tell how to take snapshot in Private/Incognito mode??
If there's no way then I'd request to the developer to bring the feature back.
Thanks.

Opera for Android & Opera Mini's ad blocking is crap.

@hari120
And this poor adblocking issue was reported to Opera at least 2 years ago back then. But Opera developers doesn't give a s***t. They simply don't care. Maybe because Opera becomes a poor chinese ad company now. Because the company is owned by poor chinese.
Opera for Android, Opera Mini, Opera for Desktop all suffer this ad blocking issue.

Any update from Opera's end?
Still nothing.

@leocg
Yes, Owned by Chinese.
And these poor Chinese companies have a very good reputation to track & profiling users and store user data to serve them to Chinese Govt. Even sell user data with ad publishers and also bombered users with annoying ads everywhere.
Just like once upon a time a very good reputed company named Opera now becomes an ad showing company who tracks user data.