Honestly I know I have only been on here for just under a month, but I couldn't tell you who runs the forum outside the two mods. I have been a supporter since day one I joined and the only times I even know of reference to the owner is when he was brought up by the mods about his vision for hidden reef chit chat and when he posted a thank you for becoming a supporter.
Looking at his recent posts it would seem he only comes on to take care of admin type things, and isn't really involved with the users (again just observation from the last month)
For a good example of what I would call a hands on owner would be revhtree over at reef2reef, and I don't mean this to be critical but to give an example. I like this place because of the more local focus, but still having an identifiable figure helps all the way around along with getting sponsors to pony up for giveaways.