Like many other members have said before me, they probably just don't want a pointless website or just don't want to waste their money on a completely pointless website. I think one of the reasons they've stopped coming into this forum and working on PG3D is because they're working on PGW...
Actually, I'm a brand new member, and i'm seeing a lot of threads that haven't been posted on since 2015. It's sort of scary that threads from 2014 are more common than recent ones.