I try and provide help whenever I can, but sometimes it's just impossible. No one can support everything other people write, for many many reasons. First, he didn't write it -- he'll need to spend quite some time to understand how it works and all. Secondly, some of the hacks are poorly written (no offence to anyone of course), which makes it even harder to support them.
It's different on vBulletin.com because we all provide support for vBulletin, and we know everything about it inside out. This is also the reason we moved the hacks to this place.