Reset time with xpansion. Lets deal with the cheating finally.

[Xaruko_Nexume]

Auto callouts, markings etc. destroyed dungeons and raids in WoW. Instead of playing the game, knowing the mechanics you just do what an addon yells at you. Using such things has devastating effects, and it's a HUGE advantage over other players.
It went so far that some fights now rely on you having the addon, and you cannot tell something is happening without the addon. This is a piss poor design and I support the complete ban of all these things.

If you can't do it on console, it should be banned.

After reading through the rest of the thread, it's obvious many people have no idea how deep and powerful the rabbit hole goes with many of these mods. Teleporting to bosses. Executing mechanics for you. Invulnerability. A quick google search followed by a few minutes of research is all it takes. They all manipulate the games code running in RAM the same way more innocent ones do. These are not LUA addons or jpg files or innocent changes. A line has got to be drawn soon.