My theory: UBBSystems = Brooks = 1 person.
Registering as UBBSystems pins that username to 1 person and it would be unusual to share a username and login with others involved.
Registering as Brooks, however, would give the impression that it was 1 person who was part of a larger organization and others were to follow.
For an owner to register as a company name can be construed as segregated and a little antagonistic. "I'm the boss and this is how it's going to be" kind of thing. Registering as Brooks (or Rick for example) gives members a much more reassuring, friendly and humane presence to the community.
I'm interested to find out what UBBSystems actually is. This is UBBCentral, a single entity. UBBSystems is plural.
I will crawl back into my hole now and watch some more.