I'm very skeptical. Every forum I've ever been on has wanted to have an attached fish book. Not one has ever succeeded.
I'd rather throw my support behind something like Seriously Fish.
When the internet was new, I thought we'd have naturally forming groups of people whose time and effort had made them experts on certain fish groups banding together to create specialized forums and information bases. The rise of troll culture killed that dead. Instead of supporting such ideas, the internet attacked anything that reeked of expertise. If you look at some of the attacks on a member like Byron here, it was disgraceful. You don't have to agree with an expert, but you do need to present credible, thought out and backed up arguments when you disagree.
We've lost the ability to discuss, and are often prone to announcing. We always were, but now it's so easy. It's not new, but it's louder.
@Back in the fold - if you want to start a working group on fish profiles, I'll help out. I'd want to see 6 to 8 people in it, and all open to submitting their monthly contributions to the group for discussion and peer editing. Each article would need a few reference sources so casual readers who want to dig deeper could do so.
On a now defunct forum, I got roped into a deal like this with 2 other people. One became pregnant and had health issues, so she dropped out. One never really dropped in - he volunteered and ghosted. That didn't work. And as a privately owned forum, when the owner lost interest and stopped paying for the site, everything was gone.
To me, we have to treat these things like old time publishing did. I had a series editor, a copy editor and a peer editor, and everything I wrote was critiqued. The peer editor was a real expert, an Ichthyologist with one of my favourite fish named after him. He's a nice guy, but he scared me.