Yeah, I think this is a big part of it. The Star Trek sub’s total abandonment of Reddit and conversion to a standalone Lemmy instance during the Blackout was a big deal and a big driver of traffic in those days and beyond.
Star Trek is big in the Threadiverse for the same reason that Earth is big in the Federation. They were a massive force in the early days.
Techwise, in addition to directly following big tech sites like Ars, Techchunch, and others I also am subscribed to the Techmeme feed because that’ll surface things from all major outlets. For news I mainly follow more local stuff, but I do sub to feeds from ProPublica and 404 Media, since they break a lot of stories.