I had a momentary topological lapse when seaming my version of Norah Gaughan's Nespelem Cardigan. Can you tell what I did wrong?
So photocopying a pattern to give to a friend is not allowed, but telling a friend how many stitches to cast on is legal.
That pattern facts are not protectable may be economically harmful to their authors, but it also allows others to build upon their work and move the state of the art forward. The fact that patterns are not protectable may contribute to the vibrancy of fashion arts. Food for thought.