How does a player with only 2 games have an elo of over +1600?

.....
this topic creates confusion among people
chess.com should add an article in support.chess.com about this
no training games
above 1200 starts exist and have existed since i joined (which is like 3 years)
#2 and #4 are correct
new in chess- 400
beginner- 800
intermediate- 1200
advanced-1600
master-2000
and for why the rating graph starts not at these numbers.... the rating graph only shows the rating at the end of the day
I got match requested by him randomly and have never played someone with an elo that high, not ever. I won because they abandoned the game and was disappointed because I was having a good chat with them. I sent them a friend request and looked at their account... only to see that it was created today and had only played 2 games; and yet had a 1600 rating. Can someone explain how this is possible?