It's difficult to point directly to examples as their posts tend to be deleted, and deleted posts will also hide the rest of the thread. This thread had portions of its OP chronicled before it was taken down though. Basically they were complaining about everywhere they went on Lemmy their posts were deleted or they were banned for "criticism". They never directly said what their criticisms were, but I can only assume they're the types you wouldn't elaborate on when trying to get people to side with you over "censorship".

I've seen multiple others have a hard time when expressing homophobia, and getting their comments or accounts removed. When the owners of the instances can't profit off you like Reddit does, lending their resources to you is done out of kindness and goodwill, and if you step on that, there's little reason to hold back haha

Anyone who supports human rights in lemmygrad is an example