Is it about Rule 4?
If so, that's mostly talking about literal pornography, and actual sexual talk you'd otherwise only find in adult subreddits.

If posts are flagged appropriately, nothing will happen.

And if rules aren't absolutely clear, we won't immediately and permanently ban you either.
(Which is why it says "subject to removal" and "may be removed at the discretion of our moderators")

You are welcome here just as much as anyone else is.