[cubefox]

They have a choice? Is it transparent for average users what is withheld from them and where? And where their own posts are withheld? If no, they don't really have a choice. If such a choice even exists.

Twitter is fairly lightly moderated I think, and the "following" tab gives a raw timeline.

[eggnet]

Average users will leave toxic environments, and be attracted toward content that is compelling to them.

If federated services pick up steam, they will pick between a few popular options.