I've seen it on Usenet and in a few comments sections on blogs. It's not a fanciful notion.
Agreed.
I've told people all the time if they want a totally unmoderated place, go to usenet. Back in the day both me and shockingly Colton (not shocking in one sense that like me he's a computer geek from the way back when, but shocking that he actually put up with some of the stuff that was posted there, though that group was milder than most) used to post on the alt.sports.basketball.utah-jazz group. Part of me liked the unmodded atmosphere, but there were pitfalls there too. It was easy for clowns to change their name (though eventually there was an art into figuring out who they were), but it also just led to threads that were nothing but massive massive trolling (typically it would be someone cross posting to both the Jazz and Lakers group about either how all Jazz fans were polygamists or how many men did Magic sleep with to get AIDS or other various vile things, but with any language anyone wanted to use just to see the fireworks between the two). It even got on my nerves after a while, and I can tolerate most anything.