Any solution has to have the support of the long-term, high-rep community, but the long-term, high-rep community creates the problem - by sticking around so long, they accumulate influence even as their incentives changed. You can see why meta might have a lot of people who don't think there's a problem at all.
The senior-friendly design of SO ignores the fact that the graveyards are full of indispensible people. One huge change would simply be to age out the users who have been around the longest, or have the highest rep. The newest can (and should) be taught by the slightly-more-experienced who aren't yet jaded by the repetition.
SO is not just a question-asking site, it's also a repository of already asked questions.
Many (but admitedly not all) questions closed as dupes make no effort to distinguish themselves from previously answered questions.
(I'm someone who thinks there are problems with some of the SO sites. I'm not a fan.)
Google: Take this link to Stack Overflow
* This discussion is closed, the moderator left the following message: 400 Bad Request. This is not the correct SO for this type of question.
Mention something that could be improved and you'll see what I mean.