I'm a big fan of Anime and Manga. I subscribe to Crunchyroll and Funimation, although I suppose I'll soon be able to cancel one of those, huh... I also frequently purchase anime and manga centered bundles on Humble Bundle. I've got a fair collection of manga now!
I also run a tumblr where I primarily re-share interesting moe pictures and gifs.
Finally, I pay for a domain which I opened up through FreeDNS that allows other tumblr users (or other web users generally) the opportunity to claim a subdomain at nya.pub for their tumblr, or server, or whatever.
I am a member of the volunteer con operations staff of the annual convention Matsuricon in Columbus, Ohio, and have been since at least 2015 (maybe 2014?).
Previously, I was involved for years as a Live Events staff member at Ohayocon, also in Columbus, Ohio.
Aside from those volunteer contributions, I have also hosted two panels over the years at Ohayocon - one planned, and one completely unplanned (it was a blizzard, and I filled in as a guest moderator on the topic, when the planned presenter could not make it.
I also love attending conventions, and I typically attend Anime Central in Rosemont, Illinois as my "big" convention and a few regional ones near home.