I was dual-boxing my combo (spriest/warlock - level 49 at the time) last Saturday in Hinterlands (MB Zone!!) and I was doing the Princess quest (Wanted: Vile Priestess Hexx and Her Minions) when a level 50 Warrior with a level 70 Hunter ran by me. I buffed them up with Fort on my Priest and even jumped out of Shadowform to throw a heal to top-up the Warrior. I then see the following in chat:

Warrior: "LOL Noob can't play the game by himself so he needs to buy a 2nd account for help to play the game!"
Me: "Says the guy with a level 70 doing all the quests for him..."

He didn't have much else to say after that. I see him back in Raventusk shortly after and right in front of him I dinged from level 49-51 by handing in about 5 quests and he was still level 50. All he says this time is "/reported for hacks, enjoy your ban loser!!" I didn't bother replying and went on my way until he started sending me whispers with over the top vulgarity at which point enough was enough and I reported/ignored.

About an hour later his level 70 buddy sends me a whisper asking if I reported his friend since he got a 72-hour suspension. I responded "No, but if you find out who did tell him/her that all of Azeroth says Thanks!" He replies: "Who's Azeroth?" And I'm the noob....