Who has time to go back and maintain 'Snippets'? Given the tendency of people to post the same things over and over in regular intervals anyway, I suspect we would have a lot of code with one single commit.

For actuall Code, I think there are already a lot of places out there that fill that Niche, including CPAN, Sourceforge, etc..

It is good thinking, but I doubt it would end up being worth the effort of setting it up.