I don't really mess with them that much as they obviously don't care, I just do things that make me smile when I see them.

I noticed several bots using the generic default avatar, so I set the default avatar to be sailor suit Barret because he brings me great joy.

There's also a trend of what I call sleeper bots. They usually name themselves FirstName1FirstName2, have no avatar and make a couple of really generic replies to threads. They then return 3-6 months later to edit in spam links to their posts. It's pretty crafty because they slip under the radar and nobody is checking those threads so the links stay there.

When I'm not banning them on sight, sometimes I like to give them FF related profile makeovers just so it's something more fun and interesting to see than their bland empty profiles. For example, http://home.eyesonff.com/member.php/...ket-of-Moogles and http://home.eyesonff.com/member.php/...on-Stand-Owner I don't know if it's all that funny, but it's the little things, right?