Interesting Situation in my NFL Picks League

[sp3ctr3]

I play in a 20-25 person per week NFL picks league. Each person attempts to pick all the winners for each game, no spread involved. It has come to my attention that one player is actually registered three times. He still pays for three "players", so I can not figure out if this creates an advantage for him or not.

Has anyone run into this before? Should I be concerned?