It is difficult to get banned here, but not impossible if you try. There is no bias towards any particular group. But make an ass of yourself and give off nothing but negativity and you will probably not be wanted here. But it's usually really mutual and works out the best for everyone. There will be no question if you are banned. You will know it. Your account may be deleted if it is inactive for a long period of time.
Deletions are generally triggered by inappropriate content. We expect everybody to be adults and behave that way. However, if you are not or cannot be an adult, your post may be deleted or modified. That does not mean you cannot make your point. Just do so in a manner befitting an adult.