Disagree. It’s not weird at all, and I would say quite productive, being that a billionaire crank is a potentially dangerous, with nearly unlimited ability to attempt to spread his influence countering it requires people to speak up.
By the same token, why should i take anything kromem says with anything but a grain of salt ? What are his credentials ? as far as anyone "being swayed" is concerned, he's a random on the internet. He's not changing minds.
You'll have a much better time telling people how and why those "billionaire crankers" are not making sound arguments than trying to gatekeep what they say. Even then, that's no guarantee.
all in all, the idea that people "speaking up" in this way does anything at all is fairly wishful thinking.