To make this simple, be nice. Keep your language clean, refrain from insults, and stay on topic. Most especially, no SPAM and no pornography.
At times I will be writing about adult subjects. You’re welcome to comment on them, but I must ask that you comment on them as an adult and in an adult manner. If you can’t be nice your comment will be deleted, and you will likely be banned.
And if you don’t know how to be nice, don’t comment.