"laws are merely a conspiracy thrust upon us..." Good luck with that logic in your murder trial... :-P
"copyright is merely a conspiracy thrust upon us", so its perfectly fine to pirate software.
Also, any code I make public will be under terms _I_ find acceptable - what 'everyone knows' really doesn't factor into the equation. You're not entitled to set usage terms for my work.
Oh, and respect for the rules IS required - or you get de-platformed. For examples see half of HN's front page :-P
edit: formatting - need more coffee