I believe the goal of most of these people is to make money.
Weird that they are all giving the source code away for free and failing on the whole to even ask for donations.
All?
ArtCraft is definitely a play at selling subscriptions.
The slew of "oh yeah, blah blah blah blah blah, that's why I built [X]." comments on every AI post now?
Click through and many you'll find "Pricing".
It's a gold rush.