I agree with what you are saying, but almost all crochet patterns have some other pattern in them. For example, all medium cardigans start with 132 crochet stitches across the back, and have x-number of rows to the arm opening, etc.Crochet stitches are basically all the same -- occasionally someone comes up with a new one. I think it's really hard to enforce it because it would take a LOT of money to prove it was yours to begin with and then they could turn around, change the stitches a little bit and do the same thing all over again. I think it's a never-ending battle. I found a pattern on Ravelry for a pretty scarf. It was $3. I bought it. Made several and then received a message from another person claiming they were the original designer and I was to immediately remove my photos, discard my finished items or pay her a penalty amount to keep them. Well, I had, in good faith, purchased the pattern and I'll be danged if I'm going to throw it all away. I simply posted in my projects that there was a dispute with the designers and referred them to both.