Again Atma can only deeply encourage to avoid commercial, privat, and without skilful intended "constitutions" runned platforms, even in that far that good leaders of groups and nations should, if wishing so for good, not only take on to supply with voluntary and community or state controlled authority but also to limit access to those places, since actually not different in conflict with common laws on not allowed public gatherings, demonstrations and all kinds of even very hurtful assemblings of interests, up to all kinds of illigal and unethical trades.
It should be clear that even the most weak community authority yet based on a global accepted constitution, can never be as dangerous as trade and gain orientated institutions, which by nature give moral, ethik and wellbeing for all, in good cases, only a secondary role after their main objective of gain and grow, sometimes, and understandable, total missing those points.
As for parents, likewise, it's good to best possible close access or dis-encourage their children and family, like one would try to keep children from improper and very insecure places.
And to be clear, although people usually see it as a "ill-willed" restriction of their "freedom": such "censures" and measures, taking on burdens to look after greater well-being of the groups one is in charge to take care on, would be better regarded as compassionate then as an enemy, like from many so called "for good and freedom acting" institutions, suggested. Parents know their children better, then afflicted rich aunts from far.
It would be of course better if people at large would be wise enough to decide for themselves, but first such is illusionistic and second, people actually miss real community platforms, runned by states or other social interested institutions in this huge new world of internet.
Good to reflect again and again:
ប្រយ័ត្នមេដឹកនាំ -Watch out and care about the leader of the group you join!