From what I have learned, these bashers are employees of a vendor that specializes in this. usually it is a team of posters that feed off each other, one is grossly insulting, one tries to support it and another is the naïve poster that asks questions to feed the cycle. as soon as they get an outsider to respond they get paid. that is how they make money, others responding to their posts. I think this is why over time the posts get increasingly ridiculous because they are really trying to get responses.

total waste of time and effort