I'm glad I set up comments with comment-spam in mind. They are not automatically authorized, and I added checks in to make sure you can't send mail through them (I don't get notified when a comment gets made, it's just put into the system without being authorized).

I'm starting to see a few spam messages come in through that way, maybe it's time for captcha to be added.. we'll see if it becomes more of a problem.

I just added a quick introduction to full-text indexing in postgresql, since it's not as easy as other systems (unfortunately). The main development site for full-text indexing has some good documentation, so it's a quick guide to get you started.