I did quite a bit of Lua WoW programming back when I was playing in WoW tournaments. The community really wanted to change a lot of the UI / UX of the default

I did quite a bit of Lua WoW programming back when I was playing in WoW tournaments. The community really wanted to change a lot of the UI / UX of the default interface to be more friendly for high level play. Tournament rules did not allow usage of addons that pre-packaged such changes, but the admins of the tournaments did have permission to allow usage of light UI changing scripts. Some people took it really far and used automated cooldown trackers etc from macros that you would paste one line at a time, but the admins in tournaments would not allow that. There's still somewhat of an active community: http://www.arenajunkies.com/topic/222642-default-ui-scripts/ http://www.arenajunkies.com/topic/222642-default-ui-scripts/