Earlier quoted context omitted.
Facebook was the Eternal September of the Web. Netiquette died when it was made generally available, as did the culture that spawned it.
I think you can tell approximately how old someone is by when they believe Eternal September started on the internet. Nobody believes it was when they started enjoying the internet. It was always when some other generation or service arrived after them. The internet was not a calm and well behaved place before Facebook arrived. The original “Eternal September” was in the early 90s. Usenet, forums, Reddit, comment sec…
Source: I was a bad, bad, boi, on UseNet.