Well, for starters, there is no "Nubius" Game engine, but there sure is a havoc engine.
Beyond that, it seems people ARE stealing my name.
For one theres a "Anubius" here. They have over 100 posts and have never talked to me though, so I suppose it COULD be a coincidence, but I've had people create crap like 'Newbius' just so they could start trouble.
Also, occasionally I'll go to sign up at a site with Nubius and it'll say it's taken. I think that's what happened at that one render website you linked me to way back when.
It's aright, once NUBIUS is printed as the producer on the back of CD's then I'll be the OH-REE-JEE-NAL