As the Wikipedia article states, it's more about the specific period of late 1993–early 1994 when some large online service providers in the US started providin

As the Wikipedia article states, it's more about the specific period of late 1993–early 1994 when some large online service providers in the US started providing access to the greater internet, the USENET in particular, and masses of new (and usually clueless wrt established norms and netiquette) internet users flooded newsgroups and forever changed and disrupted their character and culture.