> And adhere to that culture before complaining about others

Indeed! One might even say "you hypocrite, first take the plank out of your own eye, and then you will see clearly to remove the speck from your brother’s eye."

And of course because we are explicitly forbidden from talking about such a problem, it never happens, right?

It leads to an objectively worse discussion. People posting stuff, some of which people don't like, and some of which is astroturfing, shilling, brigading, foreign agents, and the like, is a better discussion than all of that plus people accusing everything they disagree with of being astroturfing, shilling, brigading, and foreign agents - especially since the accusations are, at best, imperfectly correlated with the reality.