I am convinced

lol, I do the exact same. You can tell, like you said, in a second what you are up against. I'll also shoot at them and then start doing some duck strafing and slide jumping and if i'm getting popped without a miss by a sub from 100 meters away, I'm back in the lobby in seconds. 

If they can't hit grab, spraying all over the place, I stay in and play smart, position and strategic and use the match as practice. 

I don't believe any devs left actually play this game other than for testing purposes and as part of the job. I don't believe they play on days of rest for fun. No way. Maybe i'm wrong, but I just can't see it. 

They also support smurfing and have said multiple times its fine. Like you said once... what other reasons realistically does one smurf for in the first place. I know there are some legit reasons, such as playing with you child or for testing specific things. But in most cases they are created because the person is not farming anymore. And I agree, it doesn't matter what game you move to from here (multiplayer/competitive) the cheating is the same everywhere, every game. 

I have moved to the single player campaign games like God of War, and Flintlock, Ghost, Evil West, or the games like Helldivers where you can play with friends against the AI. 

I actually pulled out the old original Medal Of Honor for the PS one and MOH underground for PS one and re-played those both. Had a blast from the past. 

Fun fact... the aiming platform for MOH for PS one is far better than the one Overwatch uses today LOL.