I'm really interested in this atm because I'm looking for an anti-spam solution, and so far it's between this and
SpamBuster.
This would very likely have much better spam detection, but I really don't like the idea of running every single post through it when in my experience all spam is generated by a new poster. If this only checked the post for spam if it was in among their first x posts it would be much more my cup of tea (this is a feature of SpamBuster).
Thanks for the work, and I'll be keeping my eye on this.