60 yr.old Bills fan.
Crowd influences other than noise disruption:
1) Pass interference calls for the home team.
2) Roughing the passer on home team quarterback.
3) Ball spots especially when close to the first down marker.
4) Holding can be called on every play. Home team gets fewer in the playoffs.
My theory is based on human nature. Referees unconsciously favor the home team and their superstars. It's not intentional.
Feel free to add or subtract. I've been obsessing about winning the rest and the AFC going thru Orchard Park.