There are a couple dozen people who keep a smaller community alive (like PugJesus on history, anon6789 on owls, JohnnyEnzyme on euro graphic novels, LaurenceWolse on b movies, Nexius Lobster on traditional art, etc); occasionally someone takes over a community and starts posting regularly, and occasionally someone burns out and the community dies.
The big three are:
There are a couple dozen people who keep a smaller community alive (like PugJesus on history, anon6789 on owls, JohnnyEnzyme on euro graphic novels, LaurenceWolse on b movies, Nexius Lobster on traditional art, etc); occasionally someone takes over a community and starts posting regularly, and occasionally someone burns out and the community dies.