Leaving aside the issue of whether or not he wants to take on the headache, I think it's true that if he wanted to, Brian could end up owning the most active bunnymen fan forum.
The reason I say that is because he has already built a Bunnymen fansite with more content to it than the "official" site has. Additionally, much of this content is unique, in that it is not conveniently available from another source.
What does the official forum have? I guess the most important thing it has is the official blessing of the band, but that is a curse as well as a blessing, because it necessarily restricts what can go on there.
The official forum is NOT a great resource for the latest news about the band. People usually hear important news before Peter is willing or able to post it.
Anyway, I think there is merit to the idea of having the fan site and the official band site being two different things. This is not a criticism of Peter. I just think his resources are better directed elsewhere.