You can select one trusted member like LoyceV (mentioned you to check if you are free to check the PM) or someone else and give your account credentials so that he can verify that you have been sent the address.
I've done that before, and I can do it if required. I don't trust screenshots as evidence.
You can also report PM to moderators and they can confirm if PMs are legit or not.
That'll work too, if they're willing to spend time on it.
People are so quick to believe anything. That is not my ETH address. This is ridiculous post your ETH address here I will buy $20 ETH and send it to you so everyone can see
If you're claiming this is a fake scam accusation, why would you pay the extortionist anything?