Oh, thanks for educating me! But seriously, that link on HN is a bit... you kinda expect people here to have basic education.
My comment had nothing to do with the theory of commons, only with the implementation. Yes, the better we coordonate the better the overall outcomes, but simply creating rules for the sake of creating rules will just create additional problems. You can't say "a better/new UN will fix Gaza" without understanding why the current one is failing: votes are based on population, there are very large Muslim populations, their political leaders have to play a certain tune or they'll have problems back home etc. It's all a bit more complicated than "let's all get along".
Same with space. Ok, basic rules are nice. At the very least, a norm of not having things go explody in stable orbits would definitely be welcome. Now, problem: how do you create an institution to enforce only the good rules, without scope creep and bureaucracy over 30 years?