Just like the guy above, solo queue above D4 has been pointless for many seasons. Matchmaking, as far as I know, always disadvantages solo queue players, so you'll get weaker teammates, but in the lobby you'll be playing with a ready-made 3-stack master/pred. That's fair, right? XD
The game is also being ruined by ready-made 3-stacks + many cheaters above D4. Is EA/Respawn doing anything about this? No. The problem grows with each passing season and is ignored, just like the number of people using Zen/Titan/Xim and other devices. I know the controller advocates will be here soon, but as a MnK player, I don't want to play with these players, and many of them cheat (as do a lot of streamers), and I'm kind of forced to play with them.
From what I understand, the master/pred lobby is a real disaster on consoles. And these people are capable of destroying PC lobbies with their friends, so it affects us as well.
PS. I just reported another multi-master for 0 recoil (r99 recoil control over 100m). He had almost 6000 damage in the game. That's sick. :D He probably won't get banned anyway since he's been playing like that for so many seasons.