That argument seems to rationalize 4chan behavior by simply saying 'it's counter-culture', as if that makes the behavior better or worse, more or less bad or justified. It changes nothing; it's posers imitating counter-culture (by that definition).
If you're betting that 4chan is the one that's going to stand out of "ahead of its time" you aren't doing it because "counterculture is always ahead" you're doing it because it's the one you personally focus on. Otherwise you'd have to be evaluating it against all the other counterculture things. And many of them are much less derivative and backwards-looking.
For example, in the current year vegetarianism is a sub-culture of mainstream lifestyle dieting while carnivorism is a counter-culture.