I design a lot of 3d models and share them online with CC non-commercial licenses.
It's really frustrating when folks download my work and sell it on Etsy, and tell me it's open source since they downloaded it for free. And then block me when I try to point out that not how it works.
And Etsy makes it really hard to enforce since they don't really care as long as they get a cut.
It has been developed as part of "A Touch of the Universe", a non-profit project for a tactile astronomy kit addressed to children with vision impairments.
Biiscuit is also contributing to the polish of the CCTVs game...
(here, a screen made in #blender3D and exported into .glb and sent to my homemade viewer)