Why does this matter? Because it doesn't just extend to writers. It extends to engineers, scientists, programmers, architects; basically anyone who makes things.

Having to worry about whether or not what you say, write, or think is illegal has a cost to creativity, since it will inevitably affect behavior like sharing ideas. imo this is one major reason that western nations produce more innovation than places like China. It's what gives the West an edge. If this trend continues over the long haul, western governments may finally achieve killing the goose that lays golden eggs; eventually we may just end up being on par with places like China minus the industrial output.