I truly hope you never find yourself on the tail end of quite damaging rumors and gossip. Allegations (again) are not charges or convictions. Him hitting on a 16 year old is creepy In my opinion, not illegal. He has admitted to this. Allegations are essentially rumors.
The issue I see are people claiming to have “horrifying” evidence, not turning it over to authorities until it is a hot topic. This is problematic. How can you allegedly have evidence and sit idle and allow this behavior to continue? Is there not one single enthusiast who claims to have proof that could have had the sense to go to authorities until now? How, in good conscience, do nothing if you have proof. If it’s true, it isn’t like it just happened to however many girls in a 24 hour period.
I am not wanting to shame victims, because I understand they may not be in the right mindset. I understand, best I can, that society already victimizes the victim. Police are not often trained to handle this situation delicately. Aside from it being a victim who has evidence and was too afraid to report it, those who have evidence are accomplices for delay in reporting.