Craig,
Yes, I'm masquerading as both -- for now. The @editor is my humble self, acting here as the owner of the site and modeling enthusiast.
I have chosen to adopt the nick @admin whenever there's a need to discuss technical or user support issues, updates to the site, maintenance, moderation, spam etc. This allows me to draw a clear line between my engagement as an editor and the technical support that we need to provide.
In the future, one of these two roles may change the "owner". The @editor will always be me - Martin, and you can read more about my background in my profile. The @admin role may be delegated to one of my colleagues as the traffic (and our software platform) grows over time.
So if you want to make friends with me, I'd suggest to bump the @editor 🙂