I noticed that some blogs create a post, submit the link on HN, then add a link at the end of the post toward their submission on HN for comments.

Something great (and simple) would be to create an API for that. The first useful feature would be to get a listing of comments for a given post. The second one (a little more complex) would be to allow HN user to comment via the API. A simple listing for the moment would be great.

This way there could be a similar plugin to Disqus for instance but for HN. It could help some post get interesting comments.

Thanks,

Sounds pretty cool. I wish there was a general API for HN to see so we can plot interesting data it collects in relation to topics/time/users.