Don't know if this has been posted or not as I didn't see it when I did a search, but there's now a web site dedicated to LOL bots, and if you've ever seen LOL cats, you'll know what I'm referring to. It's pics of bots of all kinds (they have various categories from anime to Cylons a go go and so on) with silly comments on them. Very similar to some of the sigs, in fact http://lolbots.com/
So did the internet run out of pictures of cats? They need to look for something new to do this stuff with?