I think this is it more or less.

It felt like fun freedom to have a communicative realm with no rules, guidelines, morals at all. But in hindsight I guess it was fine for me because I had a moral compass and intellect so mad-max-land allowed me to re-explore my limits and opinions on my own, like from point zero, without preexisting structure (wich is always present if there is any decency).

For some, apparently, that was not fine. Like they didn't catch themselves in the freefall of morals and epistemology that comes with the 4chan credo of "everything here fake and foolish...". Or maybe it's that some don't have a corrective social realm outside 4chan, able to get them back to the ground. And those ones overtook. (Maybe cause the other ones are done playing edge walk after a while).

Tl;dr: had fun, learned some, feel a bit bad now