I would be interested to know what exactly broke or stopped working when they implimented their fixes and what they've tried. I would try a beta build.
Anyway, something something brand loyalty through transparency and keeping people informed is key.
Right now the Opera youtube Is pretty bleak. Last post was 2 months ago to celebrate GX birthday and it was just a short commercial essentially,
Maybe consider starting 5-10 minute update posts to the opera youtube channel? It could discuss whatever tech topics on the internet, current tech news, and of course, juicy insider tidbits about how opera's various developments and tips about current opera software.
anyway thanks