Star Trek Online has come a long way from when it became free-to-play all the way to Season 6. There have been people with the game since it came into being as a pay-to-play game.
Here, MMO Anthropology interviews William McCormick who is with a reasonably sized fleet in the game who has been doing a video series about fleets and the new content. Fleets are the essential part of Star Trek Online social structure, they are essentially guilds, and recently STO added “fleet starbases” which act as a sort of player housing applied to the in game guilds.
Link, via YouTube and MMO Anthropology.