I don't think this changes thing. Not for me at least. He's had at least a dozen other people accuse him - including people that don't need his money or notoriety. And while he was cleared of criminal wrong doing in the Anthony Rapp case, I don't think he ever denied making an advance on a 14 year old boy. Just that he "didn't remember it" - which hardly matters. I don't care how drunk I get. I'm not accidentally going to hit on children.
That's kind of the point. We live in a system that is supposed to be "innocent until proven guilty". Not because people who commit crimes should get away with them, but because the opposite system would be completely untenable. How exactly is he supposed to prove that he is innocent? I don't care how sure anyone is that he did it. Prove it, or by our legal standard, he must be considered innocent.
If you want to live in a society where accusation is tantamount to fact, you're going to regret it as soon as anyone says anything about you.
Your conflating the legal system with greater society. He's not in jail or paying a settlement because there wasn't enough evidence to convict him in court. The rest of society is not bound by these same restrictions and are free to pass judgment as they please.
I wouldn't say accusations are tantamount to fact, but when you get dozens of people making the same accusation, about a crime that's difficult to prosecute and convict because of the nature of the crime, it's hard to give him the benefit of the doubt.
Are you not also passing judgement on the accusers here? You're essentially calling them all liars who are guilty of making false reports. Both sides can't be "innocent" here.