"Peter won’t invest in any companies while they’re in YC or for 3 months after they present at Demo Day (this will apply to Peter’s investment entities as well)

"Peter won’t invest in any companies while they’re in YC or for 3 months after they present at Demo Day (this will apply to Peter’s investment entities as well), which should eliminate any unfair advantage." I wonder if having Peter as an investor is a strong enough incentive that if they knew he liked them, a company would change their behavior for the 3 months after demo day.