Am I on Prisoner's Island

{quoted}

I really want to know. Matchmaking for normal games seems especially screwed up for very specifically me.

In what way? My last 3 games my team was around 1250-1300 average MMR and my opponents were 1550-1700

Edit: Just started a new game make that 1250-1750.

No, Lyte is on record for saying he doesn't believe Prisoner Island works.