We are with many though yet we are with few. We're all divided over little subgroups such as, fantasy illustrators, concept artists, comic book pencilers, photomanipers, techartists, anime drawers, realism sketchers etc. You might even find your place at multiple sections.
I found that the biggest united groups on Deviant Art are mostly evolved around fan art, such as Sonic, or My little pony.
Observations aside, I think the good thing about those groups is that they serve for companionship. Being an artist all by yourself with no one to share/talk about/discuss your work with can feel rather lonely. And that lonely feeling is not encouraging at all. Most of us keep a lot of things taboo as well, like techniques or rates. If we were more openly with these the changes of being underpaid or missing out on a job because someone else does it for hardly any money at all will grow slimmer. People should know what they are worth and not be afraid to ask for it.
When I joined Deviant Art