The proof is those over the years who have admitted to being paid. I have posted articles about it as well.
Now THAT is an ENORMOUS load of BS. The "article" you posted was the "Confessions". Which, as I proved, was a JOKE. One that way too many people were too dumb to get. One more time:
Raging Bull Chat Room Devotees Get Dose of 'Whopper' Rumors abound after an alleged stock basher 'confesses' to his sins.
Now let's see some SEC litigation brought against "paid bashers". You won't find any. You will find plenty of SEC cases filed against paid promoters. Literally hundreds and hundreds.