tldr: they prove in real time that one man’s terrorist is another man’s freedom fighter

longer: the biggest three reasons to me are:

1. they look the other way when their users are clearly using automated means to down vote & brigade leftist viewpoints.

2. they block entire instances with viewpoints they disagree with through defederation like a nanny state instead of letting you make the decision for yourself as a adult.

3. they ignore comments personally attacking leftists users even though it’s against their own instance’s rules, but are hyper vigilant on known leftist commenters.