There should be a difference between people who post the same controversial opinions over and over again like a broken record and people who write about a wide variety of topics and sometimes post controversial things, e.g. people like you. The latter should be allowed much more and they should not be banned even for the most extreme opinions, because they have a controversial idea because that’s where their reasoning led them to, and not because they simply want to promote their popular pet idea here.
There should be a difference between people who post the same controversial opinions over and over again like a broken record and people who write about a wide variety of topics and sometimes post controversial things, e.g. people like you. The latter should be allowed much more and they should not be banned even for the most extreme opinions, because they have a controversial idea because that’s where their reasoning led them to, and not because they simply want to promote their popular pet idea here.