A funny thing to mention is: Nobody had any objections to this.
Most responses were apologies for not doing it sooner. When I started this, I expected to have some resistance, but so far there was none.
This is a good thing! It seems the community wants things to change too.
How can you help?If you know somebody developing applications in their own repository, try to convince them to move their packages into Extras(-devel). Please edit the wiki page to reflect the status of each repository.
With the help of a few people, I think we can get number of repositories in the list down quickly!