It's not.

You have an account on a server (instance). That server has an administrator. I have an account on a different server, which has a different administrator. We can speak to each other in the middle from these two separate servers, via federation protocols.

The administrator(s) on your server are loud and proud authoritarians and frequently silence any discussion of general resistance, among other topics that they don't like. This is not a personal failure on your part; there's not much way to know about it except to be told or to inspect the mod logs yourself. Now that you've been told, though, you have the opportunity to move to a server that actually respects your right to speak on the internet.

Or you may elect to stay on LW and be banned or censored without warning, and be lightly associated with auth-left idiots for anyone who knows what the LW admins are like. That is a choice that can be made.

If you are going to make a move, I'll warn you that .ml is known for similar. Just about most anywhere else is hosted by sane people, frequently as independent projects, even more frequently as a direct response to LW and ML's dumbfuckery.