It would be nice if the forum software would implement a captcha-kind of login, so the artificial intelligence engine would be required to be more intelligent than it seems to be at the moment. Not necessarily to ask what the contorted characters are, but do a simple calculation based on Ohm's law, for example.
In my opinion, the current implementation of this AI engine works pretty well. Maybe the "etiquette" library needs to be adjusted, but overall, it kind of follows a conversation, don't you think? Hopefully, it could also learn.