Ah, I see what you mean. Those are serious-ly malicious bots then! But yeah, completely agreed; those can be a PITA on sites with user-generated content. But,

Ah, I see what you mean. Those are serious-ly malicious bots then! But yeah, completely agreed; those can be a PITA on sites with user-generated content. But, is your experience that these kinds of bots cause much traffic? Because, from what I've seen, they can make a mess with fake accounts, fake content, fake clicks, etc, but as far as traffic goes, they were completely dwarfed by search engine crawlers and real users' traffic. Thanks for the clarification :D