You publicly make a claim, but when asked for evidence you won't provide any without payment? That's... certainly the boldest response I've ever seen to a request for evidence.

The 'claim' is information freely given. From my point of view, if you choose to believe something I don't think is true, that's a problem for you not for me. If you want me to convince you of something, you have to pay. If I asked someone something and they responded with a rate, I'd pay if the facts were worth it and I wouldn't if they weren't.