A potential issue:
It seems like it would make more sense to have "moderator" appear on someone's forum title only in the group where they actually are a moderator. Then there will likely be less confusion. I used to receive emails from new members with questions about TNBW at the old site -- technical questions they wanted fixed, etc -- simply because I'd started The Shred Thread and had "moderator" next to my name throughout the forum. They thought that meant I worked for the site. I foresee this being even more confusing at this new site, given how many groups there will be. It may be self-explanatory, but I thought I'd point it out.
For example, I see that Mrs. Piddles is listed in this group as a moderator, likely because she started a group on writing for children & young adults. I'm a new member, so I'm going to go Quickie infiltrate her with questions about my account and such.
Could get old! And confusing.
Only my thoughts.