It should be possible to create comments

I want people to be able to comment on snips that I make. Probably either by adding a comment dyna to the bottom of the snip, or on a per-kind basis. I'm thinking something like this:

Here's the snip contents

Blah blah blah...

{comments}

The comments dyna should show any existing comments, and a form to add new ones. It should probably check them via a spam service. It should let anyone create a snip, effectively, but store their IP, author, email, site, content. It shouldn't let them choose the name of the snip that will hold their comments.