@manvanaarde
There are always more lurkers than posters and we are conversing on a platform famous for federation. Point being I don't think you can assume your opinion is the majority opinion.
Email and Usenet are not the same as the Fediverse. The term and the concept didn't exist until recently. More importantly, when a person sends an email it only goes to the recipients they consciously chose. Similar for Usent, their post only goes to the group they chose. In the Fediverse the user does not have that choice. A post made on Mastodon can go to KBin, Lemmy, or a platform they never heard of.
"Shooting the shit" in common usage means casual, trivial conversation. The term "shit posting" usually implies trolling, writing things in such a way as to illicit a negative response from someone.
Current social media platforms have been around for a long time. It remains to be seen if Kbin, Lemmy, Mastodon or the others will make it. Nobody can predict the future.
I was an activist too for many years. We didn't need federated social media. We did use the Internet, but we also got out in the streets and talked to people face to face.
If the fediverse disappears a few years from now ( Meta may win ), activists will still be able to work for positive change effectively.