I also think that it's a bad idea in the medium/long term. For now, most of the great hacks are here and are free. Soon, though, there will be a migration towards paid hacks. I believe that's inevitable, especially with the "support" of vB.org (even if just with links). Every good coder out there will see the opportunity to earn a little extra bucks. And I also think that in the long term this will hurt vB.com.
Coders who have paid-for hacks already "advertise" that in their sigs or in their posts so I don't see how difficult it could be for someone looking for them to find them.
Thanks anyway for listening.