Hmm... Haxor, I'll add you, but if you want to avoid all those unfriendly messages in your visitor message list, then my advice to you are these:
1) First get to know each other at least a little before you become friends. It'll be helpful for both people.
2) Most importantly, include as many info you can about yourself in the "About Me" section of your user info. People will automatically get to know you a lot more. Try it out n o w