What do you actually expect from WG?
MM have been changed many times, and you don't seem to like it still. Do yall want skill MM in randoms? Spoiler alert, you don't, it's terrible, since it basically removes your skill from equation, regardless if you're potato, or if you're unicum, you will play with players similar to your skill level, and will basically have 50% winratio forever, AND DO I HAVE TO MENTION SMURF ACCOUNTS? Another idea you might have: remove +2/-2, and reduce it to +1/-1 or even same tier only MM. And let me tell you something, you don't want that either. Here's why: Variety is actually what keeps you playing this game, regardless if you hate being on the bottom. If every game would be of even tier, you would see way less variety in tanks, and there would be no sense of real progression anymore, since every tier would exist in vacuum. What else you might want?
Source: https://www.reddit.com/r/WorldofTanks/comments/fipv1l/question_to_people_screaming_fix_mm/