You can be 1.8-2k and still go like 30:0. Thing is, even if you lose 10-15 games, that 30/0 early start still makes your winrate look way very high.Given DE's algorithm you will approach your ELO sooner than 50 games. The idea that there is just a bastion of 2k3 players returning to DE for the first time is laughable.
You completely ignored my reply, which is great example. I have 135 games and around 61% win rate, Even though last 70 games i kind of win/lose 50/50. But that 20/0 start still makes win ratio look good.
As it was pointed out, if people have quite many losses, they are near their elo, unless they purposely losing games, but if they are not, they are close.