A harness is a production standard for 3D assets. A generator can make a thousand creatures, humans or props — a harness decides which of them are actually shippable, by measurement rather than opinion. Every harness is open source, so running one on your own work is the closest thing to hiring the artists who set the bar.
New CC0 packs and open-source harness releases. Nothing else — no weekly filler.
Double opt-in — one confirmation email, then nothing until there's something new.