They publish (right at the bottom of that page) the emails where a journalist asked them why they're squatting the PuTTY domain and somehow think they make the journalist look bad?! https://web.archive.org/web/20250728091156/https://www.putty...
Plus, I can find absolutely zero evidence of the existence of a German journalist called "Mirai F", so I'm a bit suspicious. (It might be the "PuPRed" person being maybe-doxxed -- but that's a blog site which entirely consists of a single article about PuTTY, so I'm not convinced "journalist" applies in a meaningful sense.)
The Bitvise answers also don't look good, of course. Nobody comes out of that one smelling like roses.
I say this as someone who thinks putty.org was pretty sketchy before it went full anti-vax, and is currently looking like a slam-dunk example of the kind of thing trademark law was meant for.