User blog comment:Zaravarine/Question/@comment-8267955-20150323000125

Sooooo basically, a community OC was an underdeveloped Original Character that an admin would ask the permission of the character's owner if it would be okay with her/him that their OC would be turned into a community OC where everyone could contribute and help with developing that character. Sometimes community OCs can also be underdeveloped/rule-violating OCs (like if it were a Disney-basedd OC or it used stolen art, Mary Sue... etc.)  that are abandoned by the owner and in an effort to bring that abandoned OC to standard, everyone basically helps in making the character more developed and well-rounded.

Hope this answered your question~

~Arcus, the friendly neighborhood admin