He's maybe the worst music hoarder ever.
At least a lot of music hoarders like Madlib and Pete Rock have the decency to not tease the world about what they're missing out on.
Just will straight up say,
"Oh yeah, Song Cry Part 2?!!
That shyt was the best song I've heard from Jay in my life.
" It wasn't as good as the joints I did for Detox though. You should've heard this one on my hard drive where Dre and Snoop go back and forth like the Chronic days 
."
And even worse, he straight up posted on SOHH multiple times (it was actually him) that he would post the OG versions of some songs on there, and then just never did it.
He's a troll.
Edit:
@Zero hit the nail on the head while I was typing this