On a serious note, though, it's both petty and childish to begin claiming such things.

Yes, sometimes people will check your profile even when they blocked you.

Why? Because of those posts that violate TOS, where people get mad over people blocking them. People who block you WILL check for that, because not only is it pointless slander, it also falls under harassment.

I check up on what users I have blocked are posting, and it's allowed me to catch slanderous posts about me very quickly.