In the garment sewing space, I’ve seen many small pattern makers write that items made from their patterns may not be shared on social media or sold either without attribution or at all.
I’ll leave it to greater minds than mine to opine on whether or not that’s legally enforceable, but I think it’s not nice to do those things if you knew when you bought the pattern that that’s what the designer wanted.
There is a quilt designer who makes YouTube videos of her quilt assembly that makes it quite easy to figure out on your own how to make the blocks, including measurements. But she asks you to go to her website and buy the download, coz she needs to make a living. I think that’s fair.