I used to do a lot of science-blogging (not in English) and in our circles, a troll wasn't something you'd get from 4chan who'd try to post offending pictures e

I used to do a lot of science-blogging (not in English) and in our circles, a troll wasn't something you'd get from 4chan who'd try to post offending pictures etc., but a "lone crusader on a mission" - someone with apparently unlimited time, someone with his or her own absolutely crazy pet-theory [1], someone who would come to personally attack the author on some past issue on every single post. These people ruin the entire blog, you have to be fast to ban them (very useful with dynamic IPs..) and constantly monitor the comments. I've personally been attacked in "open letters" to government officials [2], calling me a "dangerous lying scientist" because I had the audacity to shred apart a terrible paper on the "apparent dangers" of WLANs. I wouldn't see these people anywhere near Galilei. [1] Examples: evolution is a lie, or global warming is a hoax, or the theory of general relativity is wrong, or the blogger is a fraud [2] - that no-one reads -