SPARROWSFEETPlCS
From what I can see it looks like you are an above average player and quickly rise to higher level of play MM due to the fact that when you start a new account you are way better then those that are initially MM w/against you. Meaning that your KD etc rises fast until you start to be MM at your level of play as far as run and gun skills go. But when you hit that higher level of play it is about more than run and gun but also about thinking.
Definitely not a reason to keep making new accounts to have easier lobbies. There is a word for that. You might want to re-read the ToS and Fair Play rules again.
Think about how some players that are not as skilled and have been playing the game feel when they get deleted by the new level 6 account you made or how other new players feel when your new account is matched against them and you melt them like butter in the frying pan.