I just host family RPs, get dozens of people, and just freebuild and occasionally do a more in-depth RP of my own. That way I can do whatever I want, have control over everything, and if I'm bored I can talk to people.
If I host a server titled "freeplay", however, no one joins despite the fact that only 1/4 of the people who join really do a family RP. The rest build and do dragon RPs.