Truth be told, I'm not a huge fan of the sort of libertarian argument in the linked article (not sure how well "we don't need regulations! the market will punish websites that host bad actors via advertisers leaving!" has borne out in practice -- glances at Facebook's half of the advertising duopoly), and smaller communities do notably have the property of being much easier to moderate and remove questionable things compared to billion-user social websites where the sheer scale makes things impractical. Given that, I feel like the fediverse model of "a bunch of little individually-moderated websites that can talk to each other" could actually benefit in such a regulatory environment.

But, obviously the actual root cause of the issue is platforms being allowed to grow to insane sizes and monopolize everything in the first place (not very useful to make them liable if they have infinite money and can just eat the cost of litigation), and to put it lightly I'm not sure "make websites more beholden to insane state laws" is a great solution to the things that are actually problems anyway :/