The game’s current state and imposed restrictions have left modders frustrated.
In World of Warcraft Midnight, the developers introduced a series of restrictions on add-ons (user-created modifications). Several members of the modding community are unhappy and have decided to temporarily withdraw support for the game.
For example, a statement from the oUF developer — the framework included in the ElvUI interface mod pack — has been widely shared.
After spending a few hours with the alpha and seeing how poor its condition is, I decided to put this on hold. To stop the endless errors, I had to disable core functionality entirely — nameplates, tags, cast and aura bars, and several other elements. Tags and nameplates might be recoverable, but the rest simply cannot be brought into a working state. […Blizzard] have people who can handle this internally. In its current form, I will not be developing oUF, at least not for now. I’ll try again in a few months when a pre-patch date is announced to see if anything can be fixed. If things are still chaotic by then, we’ll likely abandon the project.
The developer pointed out that in the past Blizzard updated the API (application programming interface), giving modders new tools that improved visuals or performance; now, however, the situation is different:
Now it’s the opposite. Blizzard has effectively gutted the API. No matter how much time and effort we spend rewriting it, we can’t replace what has been broken […] to configure certain features you need to perform internal calculations, but we can’t do that because the required values are hidden secrets — we can’t read them, modify them, or react to them […] Ultimately, it’s not a question of time or effort; we simply no longer have the tools to do what we want to do.
Source: iXBT.games