World of Warcraft's changing in a big way—announced a while back, Blizzard's decided that you shouldn't have to download a huge list of UI mods (addons) just to play at a competitive level with others, and will kneecap the ones related to combat in this week's patch. Depending on when you're reading this, it might've done it already, given the patch launches on January 20.
Alright, "kneecap" is harsh. Blizzard's made an effort through rounds of beta testing, and continual conversations with addon developers, to try and thread the needle between functionality and form. Basically, the developer doesn't want addons to be required—but anything that's cosmetic can stay.
