@woozle@maggiejk@chevalier26@actuallyautistic with academics it can be the language too. One of the gates academia uses is the jargon and framing that marks insiders from outsiders. So when academics meet ideas that aren't dressed up with the rights words they habitually disregard them.
It's difficult if you're in a field that attracts cranks because you see so many perpetual motion machines or whatever. But also ideas from unrelated fields that are very real.