I agree with this 100%, I disagree however that alt accounts are cheating, smurfs manipulating the system are throwing 2 games to 1 they try in so they dont climb. And alt account on the other hand can be anyone ranked literally anywhere on the ladder, so long as they dont throw to stay low, even Jeff said alts are ok.
So when a silver queues with a plat and averages out to gold, the plat is cheating because they have an unfair advantage over the gold players on the other team
Thats because low level accounts that don’t overperform in a certain rank are deemed new players, while most of them are Bronze/Silver players on a new account trying to escape from their current rank, this also impacts the game in the same way, just less noticeable as they are passed off.