It is probably a combination of the over-representation of the socially incompetent on the internet, and the increasing prevalence of social incompetence due to the isolation induced by technology and modern ways of being.

Kids are awkward as fuck these days. Humans need to be socialised.

As someone who grew up before cell phones even existed, kids have always been awkward as fuck. (I don't disagree with the general subtext of your comment re: the negative impact of isolation, though)