Aka, “Why Don’t You Respond to Criticism?”
It all boils down to bad faith. They don’t care what argument you make, you’ll never sway them. They’re not interested in the debate with you as much as as they are just getting their bullshit out there for randos to read. Like you say, while you’re finding sources and making sure everyone agrees on terminology they’ve already said 3 more things that are completely wrong.
I probably wouldn’t classify it that way. It’s a cesspool but not really what I’d consider “far right” like say Stormfront.
You’ll find people openly arguing with Nazis so it’s not really fair to say it’s a far right forum as much as it is just a complete cesspool where the worst side of people comes out.
FWIW I wouldn’t really consider Telegram a far right forum either even though they’re definitely there and highly visible.