His comment that the thread feels a little hostile I found a bit rich. He put his neck out claiming 10k species, and he seemed to be looking for fame and glory a bit.
It was a big claim. Whether he had 10k or not, what he had available to view on iGT was kind of a mess and didn't convince many people. He still hasn't commented (as far as I've seen) on species like Purple-winged Ground-Dove, Cozumel Thrasher, Manipur Bush-Quail, Jerdon's Courser, Fiji Petrel, etc. He wrote his own press release calling himself one of the best birders in the world. Again, to me he seemed to be looking for a bit of fame (nothing wrong with that though the timing was suspect).
But when the questions started coming he posted a political deflection, then played the victim a bit and said he'd take his ball and go home.
At this point, I think I'm not the only one who'd love to see more proof / hear more about it all and see a more careful and believable list. But if that doesn't occur (and it's fully up to Jason of course), I can't help but think that he's pretty well spoiled his name in the birding world and this will blow over pretty rapidly. Maybe it's better for all involved if it just sort of gets forgotten.