The Devs have introduced several UI elements similar to those found in it, because and they have stated, it does have a few things that enhance the gameplay experience and this part is important while still following what their overall idea for how the game should play
The Map Hack part of it is an unfortunately giving players that use it an advantage that they feel is not congruent – they dont want you seeing where mobs are beforehand for a reason. They feel this does not enhance the gameplay.
See the thing here is… lets say you play Hardcore, in a game known for lagging in certain meta’s lagging as in straight locking for 30s->1m like Firebats … oh that was a blast, you maaaaay just may wanna know where your Sanc actually is on the ground because you are responsible for the characters of 3 other people that worked hard to get their gear despite d/c’s and poodlecorp and other non natural deaths
The problem truly is that there is too much visual clutter, from what I remember in PoE you can tell what monsters are debuffed from what through indicators-- in most games in general an ability tends to give some indication it has taken effect and you know what… the same is true in Diablo, but you literally cant see because youre either moving too fast or too many mobs on screen.
so i think what people are saying is, if you really want people to stop using TH, sure go ahead and start banning the most knowledgeable people in the game, generally the most helpful, for something that amongst the Diablo Elite is considered somewhat legit, certainly not as bad as botting, or people who manipulate systems to make sure they can get certain things back from a death
-OR-
Make some notable UI changes to counteract the fact we literally cant see necessary information on the ground because of visual noise, and make it so they can see which items are or arent ancient without having to cursor over them give me a preview in stash for next page by hovering over that tab, show a visual # for gems and Augmented Level on gear, cause all this does is make it more organized and lets you waste less time if you’re a player that lets say has over 2 years playtime, yet is considered slow by many of his friends cause hes not using a macro for rat runs to salvage all, spam buy, upgrade gem + portal perfect time (these arent TH features btw) even if his clan’s policy is to never take Botted Bounty bags “cookies” and botting is an insta-kick from clan. Because such a person may be an overall positive influence on the community and loved Diablo III despite how much others hated on it, and honestly has grown a little weary of running the same exp meta for so many seasons finding himself playing Overwatch more and more.
Remember this is a dying game, most people that are using this still farm their own keys and grind their own paragon, and while yes in Blizzards eyes it is cheating-- but they’ve had ban waves for botters. They have banned Botters and Exploiters… oh yes they have.
Also to anyone reading this, while it may be an advantage, it isn’t the reason you didn’t get rank 1, I know plenty of people who are top ranks that don’t use it.