Just for Clarification on dealing with Multiboxing.
As we all know, everyone can't multibox. Either due to PC specs or insufficient funding/time, it's nearly impossible to face a multiboxer 1 on 1.
Yes, it gets annoying in battlegrounds, and it seems that Alliance have more mbx than the Horde do.
I'm getting tired of people complaining about it. If you don't like it - leave. I personally don't multibox.
There is a fine line dividing multiboxers / botting. Botting is ILLEGAL - multiboxing is LEGAL.
Find ways to outsmart them. I found a guide that you can follow and might be helpful for the average joe that has no clue what to do.
How to Kill Multi-boxers:
Run Through Them: Multiboxers are usually casters following a lead character. As such, the lead characters needs to walk in a circle (not just spin around) to face the opposite directions because they have to get all the characters to turn around. So, you run through them and it'll take them time to turn around. It can be the difference between a keyboard turner and a mouse turner, except more so. This only works if they are using /follow instead of separate key movement/mouse commands or chaining the key commands to each character.
Taking Out the Lead Character: While a good multiboxer will be able to quickly pick up a new lead character, it may still take them time to react.
Fear Bombs: It'll take them time to get reorganized and back to following the lead character. Good multiboxers will have macros set up to follow the lead character quickly, but sometimes the feared characters are too far away.
Individual CC / Damage: If something different is happening to each character, they won't be able to react individually. If one character is sheeped, another feared, a third sapped, a fourth stunned and taking damage, and the last rooted in place and taking damage... how will the multiboxer be able to react when something different is happening to each of them? They all can't use the same ability or move the same way since they are all suddenly doing different things.
Death: When a multiboxer dies, unlike a normal group, they can't res individually and run back into the fray. They have to wait until all of their characters die so they can res at the same time and start following again.
AoEs: Multi-boxers are always in a tight group (if they haven't been separated or feared). Great for AoEing! With all of them taking so much damage at once, it'll be harder for them to recover.
Directions: Multi-boxers only ever face one direction. Most offensive abilities require you to face your target. If your group spreads out around the group of multi-boxers, they won't be able to target you all. They can't look in all directions at once, like a normal group can.
Bring Friends: Don't think of a multi-boxer as one person. Think of them as multiple people. Would you go up against a group when you are outnumbered? No. Then why would you go up against a multi-boxer all alone? Bring friends to help even the numbers, just as you would do when going up against a normal group of players.
Be Creative: Since each character has to react in almost the same way as all the others, they can't act individually like a normal group can.
As you can see, multiboxers are at a bigger disadvantage than a group of 5 normal players.