Not sure this makes a lot of sense, what prevents anyone from posting AI slop using a verified age or even ID?
They are rather working with governments that more and more are making certain opinions punishable by law, then quick and effective ID of the user makes prosecution or fining a lot cheaper.
Sooner rather than later it will be hard to say "from the river to the sea" or "no kings" without being charged with hate speech and treason respectively.