You don't have to apologise to someone who didn't even elaborate why he disagrees and straight out insulted you. I doubt he or she ever read the entire post. Most likely an ADD kid who lacks prover supervision by his parents or worst case scenario a grownup who is still under parental supervision. A sad fate. You elaborated on your thoughts very well and such constructive criticism is sorely needed. Otherwise game devs would leave everything without patching out the problems. That would've been terrible.