Forking coins isn't illegal. its abusing the protocol at best, but lets face it. if a coins protocol allows it to be forked via 51% attacks, how is it supposed to be a viable form of currency in the digital age, so i argue your bubblegum leave it to beaver logic discredits you, and the opposition of that thread.
ddosing pools and services, that's an entirely different matter.
I don't mean forking, I am talking about extortion. And if I remember right, ddosing pools were also discussed in that shitcoin thread as an extra bonus.
They discuss charging devs a 'fee' if they don't comply with them, and if they don't, they will ddos them. That is the illegality I am talking about.