Why I deleted Opera 19 and restored Opera 12:

(1) Bookmarks are indispensable to me, so I went back to Opera 12.
(2) I like using Startpage as my default search tool. Opera 19 doesn't allow custom default search engines, so I went back to Opera 12.
(3) I liked having the panel on the left of my browser. Opera 19 doesn't have panels, so I went back to Opera 12.
(4) Opera 19 got rid of Opera Link. I use Opera Link, so I went back to Opera 12.

Hmm... Time to rethink things a bit.
Opera 12 is an old browser. I need a browser that is current.
I guess I'll have to drop Opera 12 and go to an open source version of Chrome.
For those of you now looking for a new browser, here are my recommendations:

SRWare Iron: http://www.srware.net/forum/viewforum.php?f=18
Chromium OSX: http://www.freesmug.org/chromium

I sure hope Opera gets a clue about this, but it seems they are determined to pursue the path their on. I will leave with these questions for them to think about:

How is the "New Opera" browser similar to the Windows 8 interface?
Windows 8 sure worked out for Microsoft, didn't it?

Bye Bye Opera. I'll check back next year year to see how you're doing.