I think that while the signal/noise ratio on the internet is much lower when I joined as a wee person in the 1980s, we are simply not prepared for the poisoning of the commons that is coming.
The people who began circling wagons in the late 1990s creating invite-only “smart friends” stealth communities will turn out to have been bang on the money.
It’s probably not too late to start - but which platforms other than private email lists and RocketChat exist for the endless hunker-down?