You *DO* know your IP address is recorded, yes?
My IP address was being recorded while I made a user account and posted comments in accordance with the TOS? Oh, no!
Speaking of the TOS, I particularly liked:
Because user authentication on the Internet is difficult, the Company cannot and does not confirm that users are who they claim to be. Because we do not and cannot be involved in user-to-user transactions or control the behavior of any Site’s users[...]
Getting a bug up your ass about someone else's username--no, it's not yours--doesn't give you the right to threaten people.