I've wondered about this for a long time, but wasn't ever confident about the maintenance issue: it seems like it would be next to impossible to make sure that problems get consistent responses, to effectively manage the potential volume of responses, or even to deal with the inevitable bad reports (either misled or outright malicious). In extreme cases -- I'm thinking of the stuff we send to oversight or OTRS, for example -- keeping a very central, very public list of "everything that's wrong" might even attract trouble in the form of trolls or iffy responses.
Still, I'm glad to see a project finally giving this a go, and I'm very curious to hear how it works out for them. I wish them good luck.
-Luna