Why don't you believe either way? If the "he's creepy" side had provided their "curated receipts" would you believe them?
As it stands, he's provided receipts and the other side hasn't, so for me any reasonable person believes the person with the receipts.
And sure, we can't force people to form opinions in one way or another, but we absolutely can (and arguably should) criticize people who form their opinions in a way that is best modeled after a lynch mob, in the exact same way I would react to a... real life lynch mob.
But you are free to believe whatever you want.
Personally, I don’t hold a belief either way about this person. I neither believe or disbelieve them.