I think the anon above was going for a joke, not serious business guns blazing. There's a point in there though, if I said most of the fic I run across in my fandom is bad - is anyone questioning that statisically, most fic is bad? - and someone decided to kindly inform me where to find different kinds and genres of fic and that I can't judge until I read them? Awkwardly reminding them that I said most, not all, is the response I'd make.

All is bad = blanket statement that is clearly questionable and untrue. Most is bad = a number is good, a number is bad, implying they have experience.