this was the main point of my comment.
before they were a browser maker. everyone knew them for that. the work from their team shone.
now they are skin makers. and a unknown ad network.
the work of both their awesome browser devs and ad servers are mostly unknown to anyone. it all goes to google fame in the end. or do you think people outside of this very small circle of browser developers read release notes and credits?! heck you had to link to a source tracker.
nobody knows what is the opera browser anymore, because, i was one of them, you use opera because of feature X and Y. then you install Opera 13 over opera 12, and... you have a trimmed down version of chrome! you don't have your loved feature X. Nor feature Y. and some features from chrome haven't even made it to opera 13! so you just go to chrome and forever give up feature X and Y (not sure why so many people do that), or you move forward to firefox and have incomplete versions of X and Y.
I doubt opera kept any user after 13.