You ever stop to think that maybe he wanted to keep the group private & not have amateurs & hobbyists knocking about, which any time you say the words "jazz research" you are sure to get? That's not an intrinsically bad thing, and I don't think he would say that it is, But from what I can gather, he wants this group to be limited to people with serious chops and credentials, and to that I say, yeah, right on. It is his thing after all.
Oh yeah, right... that's not acceptable to you, so now what are you doing? Using a public forum to discuss a private one and vent against it's "owner" using "has this ever happened to you?" as a premise.
Kinda sounds like a temper tantrum to me, but hey, I'm old-fashioned that way.
It's the same ole air the dirty laundry shit - character assassination.