It's really just down to the size of the site/service and Dunbar's Number. Whenever a site or service gets big enough that you can't really know everyone who's

It's really just down to the size of the site/service and Dunbar's Number. Whenever a site or service gets big enough that you can't really know everyone who's active there, then it tends to spiral towards toxicity. Hence why big forums used to be a lot crazier/dramatic than smaller ones, why social media platforms tend towards becoming a cesspit over time, and why the means of which a platform is run matters less than people think civility wise.