One reason that people enjoy to MOO is that they meet other people that are interested in computers and communication. Sometimes a computer is the only companion a person has. They can explore and discover new tasks that their computer can perform, suc h as MOOing. People spend hours MOOing. They meet all kinds of characters and talk about several topics.
People can communicate without revealing who they really are.
There is no commitment. It can be a mystery. They can express themselves and not worry about th e other party's response or reaction. MOOing is more for the advanced computer literate population of the world. It must be something they really want to do.