I've seen trolls on numerous other community boards. Heck, trolls were a daily occurrence on Babycenter (a pregnancy/parenting forum). But it's never occurred to me that trolls might frequent an MI board. I guess, for some reason, I assumed this kind of thing would be...off limits? Or just, I don't know, I guess I just didn't think about it.
Now I feel like I'm going to be looking everywhere.