I didn't know about this addon until a few days ago.
I have been playing M+ here and there, usually with friends and too high keystones knowing that we may not actually not be able to complete the dungeon but who cares it was for fun.
Now I have tried to get in more serious with M+ dungeons and it turns out I am not accepted in 99% of the teams because of my low wow progress points.
This is dumb as hell. I got 8 bosses down in Mythic ToS, of course I am a skilled player. This basically closes the M+ door for me.
I want Blizz to take such Addon down and ensue bans to those who have used it.