1) constant draw requests is unsportsmanlike but not against the rules.
2) You can block him and then not have to worry about playing against such people in the future.
3) I think it reflects poorly on one's ability to express themselves when your vocabulary is largely made up of words you wouldn't use in polite company.
I know there are plenty out there doing this, and they should be banned, but here is one more douche that just does not quite get that he is mated (or maybe he does, but for the sake of he is spamming with draw offers anyway).
Is there a way to report draw spammers? Their clock doesn't stop everytime they offer a draw, does it? Thanks.