Quote Originally Posted by Otlecs View Post
Continuously report them AFK with all 5 toons and watch them fly into a foaming frenzy.

Nah. Just kidding.

Probably.

I deal with them by....

a) having a chat tab that includes only guild, party, raid and whispers so I never see BG chat.
b) using the "report spam" option if they whisper me - that blocks all characters on their account for 24 hours and saves wasting an ignore slot on somebody you may never see again.

The worst thing you can possibly do is engage the haters on any level. It's distracting for everybody, most of all you, and you'll never convince them anyway.
Lots of wisdom in this post. Heed his advice.