The advantage is that you can easily ping other developers, comment, and reference other topics.

I didn't mean to insinuate that the discussion on github should not exist- it really should, and that's exactly what github is for. I'm just questioning the use of the page to trigger discussion on HN. Even the wikipedia page on ORM would have better content to consider.

EDIT: Unless gittip's potential use of an ORM is news-worthy, in which case I am very out of touch with hacker news. ORMs are as commonplace as databases now and have been for a while.