This is something that I have been thinking about for a while, and I have implemented systems not requiring registration several times. In order to try to keep

This is something that I have been thinking about for a while, and I have implemented systems not requiring registration several times. In order to try to keep the quality of the content relatively high on those sites I also do some very simple statistical analysis on the text of each post/comment. It works very well! I've had one of the sites up for over a year and haven't had any real problems. There is a Rails plugin that I wrote for implementing a comment system without registration here: http://github.com/aarongough/has_threaded_comments http://github.com/aarongough/has_threaded_comments And that system integrates automatically with my system for doing statistical analysis on the text: http://github.com/aarongough/validates_text_content http://github.com/aarongough/validates_text_content Examples of both in use can be seen at: http://whyiamangry.com/ http://whyiamangry.com/