There should be some other spam databases that hold information about email addresses/ip-addresses that are potentially spam bots, so it wouldn’t prevent them from registering. If there isn’t, I don’t know whether if buddypress should create its own to control this targeted spam.
Hi Paul, thank you for your response. I’ve noticed that you have been working on a plugin for combining Akismet with Buddypress Activity stream. Akismet is a great software which does actually work, protected my blog from 1,500 spam comments. However, it should not be just limited to the activity stream, as these bots are resorting to creating groups for their spam. Also, is it possible to combine it with user registrations as well? So when continuous spam is detected by Akismet from the same user, that user is automatically banned or deleted (up to the user).