I've been doing forums for 15+ years, I'm one of the staff on a large RV forum and the administrator on a Jeep forum. We see the occasional keyboard warrior who's goal in life is to be the expert and final authority on everything. This guy would publicly respond that the person isn't taking a dump the correct or most efficient way. These people are grossing annoying.
On the two forums I moderate we keep a close eye on everything, the Jeep forum members know i will not tolerate any personal attacks or insults. "Criticize ideas and not people." The trouble makers usually quickly move on to plague another forum. We could tell when one guy on the RV forum was off his meds, he would get quite bizarre and get a time-out.
This has been a great and friendly place for me even though I'm just a rancher and not professionally associated with heavy equipment. The depth and breath of knowledge here is quite amazing.