For what it's worth, years ago I participated in a community Stevie Ray Vaughan group. We traded music and shared stories. As a group, we developed an extensive SRV FAQ that became well known. One guy in particular had started a fan club before this internet blog group formed, so in fairness, he pre-existed our talk group. However, for awhile, this guy was also part of the early group.
He broke off and started doing stuff on his own. Started hoarding. He ended up writing a book which he claimed authorship over, though not all of the book was written by him. Pretty big controversy and most of the purists on our talk group were resentful. He ended up starting several SRV-related endeavors that mutually benefitted himself and the SRV legacy. For example, now there's an SRV museum where he displays his personal collection of SRV memorabilia...it's not called the XX museum of SRV memorabilia...it's just called the SRV museum. I really don't know if the family estate has sanctioned him or not, but that's not really the point.
For the most part, nowadays I just say good for him. He's taken intiative and stuck to it, and he's making a buck for himself while doing a reasonable job promoting the legacy of SRV. On another level, I still see this guy as the same opportunistic douchebag I thought he was 20 years ago when I would trade tapes with him and he'd take advantage of me and always hoard the good stuff.
I'm not sure if there's a moral to this story, but I think it's that, if anyone were to take the initiative to write a book that compiles information in this forum, there's probably a really good chance that others are going to end up being resentful if the author makes any money off or gains anything intangible out of it.