There are a lot of people saying that Usenet is no longer appropriate given today's social landscape. But it's interesting that Satoshi started Bittorrent by posting to the crypto mailing list. That was 2008, a decade and a half ago. But Usenet had died long before that, and long after Usenet-style newsgroups had gone out of fashion.

Text is timeless, and it's worth keeping an open mind that it can work. Maybe specific niche interests are the key; crypto is a big topic now, but back then only a few enthusiasts cared.