The harm is on people trying to shut down legitimate discussions by going on a moral crusade about things they didn't even bother to read what they were signing in for. The deliberate function of the roulette is one of major points in the topic at hand, once you inform yourself what the roulette is about all the comments saying that this suggestion is bad because "bad mentors don't want to help newbies" are moot and there aren't any other points being made against the removal of ex trials beside those.
You can choose to believe whatever you want, but trying to use it on a discussion is, as you said, trying to pass opinion as fact.
