I want to add a couple of good ones I’ve found:
Jeff the Killer lost media: no one knows where the original Jeff The Killer image came from.
Mortis.com: old weird website
Also here’s a good website on various obscure computer/Internet related oddities: https://suricrasia.online/iceberg/
The other similar case is ‘the ball on a string’ guy who went to different communitites including on reddit for years to promote his weird theory. IIRC his theory was that balls on strings of different sizes has their surface rotate at the similar speed if the central axis has a constant rotational speed too. Although many people tried to explain it to him, he insisted that larger ball therefore would spin like a Ferrari’s wheel.
These cases are all depressive rather than mysterious.
Yeah, it’s fun to laugh at these weird theories, but a bit depressing when you realize a lot of them come from a place of serious mental illness.
There’s that one celebrity who firmly believes that 1 * 1 is 2, or something equally bizarre…
It’s probably fine as long as they don’t try to push it onto others. Hope they don’t.