Indeed, you made no assertions about cannabis; you made an ad hominem assertion that people only minimize any suggestion that cannabis (or smoked meats, or Lisp or anything else) is "not all good" because they like it; as if they could never use any objective tools, like data.
All that oceanplexian's response proved "so nicely" is that people will sometimes fall for ad hominem assertions and try to engage them.
Someone in Seattle said this to me once when I was sitting on his front stoop. I was on the phone and saw him walk up and I jumped and hurried off his steps. I will never forget his words because I was high af at the time