I just checked the link and right now there seems to be a small selection of compilations there. Let's see what happens next.
It's a tricky situation. The previous version was a treasure trove for an oldschool rave collector, but hardly for anyone else. Let's face it - next to no one would probably need 234 old rave compilations (many of them double albums) nor pay any really serious money for digital copies of them, but for about 200 euros/dollars the whole bundle was an impressive collection for archival purposes and in case that you wanted to check random bits from there. However, if the original licensing deals had expired:
Maybe the artists don't see a penny of it.
Then again, "a penny" would be the right ballpark estimate per track if you split the sum (minus fees, the label's share, taxes etc.) between, let's say, 4000 tracks in the bundle.
And then, trying to re-negotiate the deals with everyone who had appeared on those albums over several decades would be a monumental task. I happen to know how tedious it can be to track down and to negotiate the licences even for a single track today with so many possible rightholders in different regions etc. Then just imagine the effort vs gain for thousands of them if it's basically just a tiny amount of oldschool hoarders who might ever buy this bundle (or parts of it).
So, is anyone going to make a lot of money from this? It would be awfully nice if the compilations with very little market value today would be just uploaded gradually to archive.org as public domain or offered as pay-what-you-want-for-charity or whatever, but even that would require a permission from everyone individually. In any case, such huge collections with diverse authors and little demand are largely stuck in a limbo. It's hard to see any way out from there that would be both realistic and legal.
I was kind of tempted to buy the whole shebang for the aforementioned reasons (basically packratting and occasional nostalgia/research) but never did because my hard disks are a disaster area and cannot handle hundreds of gigabytes with extra backups - which you always need with online stores that may vanish without a trace.