"then I deleted it and quite the forum."

If you don't look at your own work with a critical eye before posting it, expect people to do it for you, whether it's a song, video, piece of art, or a reply on reddit. The point of the matter is that I don't WANT to live in a world where "A for effort" exists. I'd much rather deal with a world in which "A for actually good work" is the norm. The fact of the matter is that no matter how much "hard work" is put into something doesn't matter if the end result still. isn't. good.