Autonomy
While I love to be involved in a community, I prefer to be my own autonomous entity. Every time I'm in a group and have to play by a group's rules I just fall apart. Especially when I already struggle with horrible social anxiety.
Not everybody can handle being on a team. Those of us who work better on our own often feel restrained or tied down and would rather just go off on our own to get shit done instead of butting heads. And that's okay.
Once again, people are different.