It's tolerated in different ways. Ostracization and orchestrated mass downvotes are used rather than bans. .world utilizes methods of control that are more subtle than .ml. Which is consistent with how the CIA/West exerts control compared to China.
Our propaganda techniques and mechanisms of control are more multifaceted and less brutish and obvious - which isn't a good thing. It means that we create a veil and drape it over the eyes of our people so that they don't even realize that they are being controlled. This is the ideological state apparatus of the West that is drastically more effective than anything a socialist state has managed to create. Of course, we both have repressive state apparatuses as well, and our police are arguably more brutal than theirs (especially if you aren't white and female), but there is less need to use that when you are able to brainwash your public so effectively with subtle acts of ideological correction. And convincing them that hundreds of strangers are mad at them is a good way to minimize dissent from being articulated in the first place, as well as distractions such as typical liberal rage bait and "red team bad" distractions