thud is the quality of life
some kind of "some halfbrain idiots" think that it has maphack tool, but don't make me laugh, maphack in wc3/dota/etc or wallhack in FPS like CS are very different things from thud, there is no direct competition among d3 players.
blizzard are too lazy to improve UI, like 4 years to color death breathes in cyan, or 4.5 years to show GR progress in %.
some day, our children will see numerals cooldowns and elite affixies above the mobs MAY BE
no one will use TH if the game HUD was good enough.