I waxed if I should reply to this or start an entire thread by itself, but I wanted to toss this in.
I never 'knew' Robert, but he was professionally critically of a question I asked once, and at first I was embarrassed enough that I deleted the question. I realized however, the great service done upon me. I was seeking design help on building a framework for Unity, and Robert asked how to quantify what I was asking, just not an opinion but what I was actually trying to achieve.
Months later it dawned upon me that I really didn't know what I was trying to build, and that redirection encouraged me considerably. I think more importantly, a question that was asked with a subjective answer in mind was not answered and I think that's critical. SO / and SE as a whole is a place to find knowledge, and I think without moderation opinion and duplication will take hold.
I fear of the communitiescommunity's loss Robert, and thank you not for making me feel invited, but making me feel that I needed to think more about what I was asking.