Two weeks ago YH.io sold for $25,000. Registered in 2014 the domain name moved to Key Systems and now the buyer has a site up on the domain name.
The buyer is Yellow Heart LLC. This looks to be an NFT marketplace for music. It looks to be in beta with just a few bands.
YellowHeart is a ticketing blockchain that has the full transparency for the fans and also the artists. They operate at Yellowheart.io.