I've not been as fannishly active as I used to be, either, and I do miss it. For whatever reason, I mostly see myself participating in TV fandoms (although I've dabbled a bit in the MCU), but there aren't any airing currently that sucked me in the way that Supernatural did. There have been and are shows that I love just as much if not more than I did/do supernatural, but they just don't inspire me to want to write or seek out fic. Fringe is a great example. Fringe is probably one of my all-time favorite shows, but I just didn't have that drive. And the farscape reviews over at the AVclub really make me wish it had aired today, rather than 10+ years ago, because I enjoy the heck out of the discussions and if it weren't such a done and finished thing, I'd probably be ficcing and meta-ing it up like a crazy person.

That said, I read an article today on a bunch of new sci-fi shows that SyFy is considering and just the bare descriptions have me thinking that a few of them could have the potential to bring back that fannish fun.