I'd like to see extras at least offered as an optional source for software if not enabled by default. I really don't want to see all the community effort hidden from the users. that said it should be discussed what can be offered to the users. personally I find it a bit weird that all the users are offered custom kernels, etc from extras. I think that kind of packages belong in devel.

about the community QA. I think the problem is not the weight of extras QA but the lack of community QA testers. time to live for packages in testing would be useful IMO. if package is not promoted within a month remove it from testing.