Thanks.

No. I've been considering whether to open source it, and there are two issues:

1. Due to the current lower prices, I haven't nearly covered my learning/development time yet from the community rewards, significant though they have been.
2. If this code was made public it would allow organised spammers to much more easily circumvent adverse classification, and undermine the effort.

I think this issue is similar to some we've discussed in the past, with no obvious perfect solutions.