I mean there are communities dedicated to having a problem with Lemmy itself being developed by Marxist-Leninists. Not sure it'll stop at the instance level.
But hey: Shitjustworks defederated Lemmygrad since the admin doesn't like them and hexbear defederated shitjustworks, so I only ever see these kind of after-action-reports from the folks that go out searching for bad takes from those instances or wherever.