>Millennials: 1980-1996: Grew up almost entirely in disposables, were the first to wear Huggies Pull-Ups and GoodNites. Anyone who took an interest to diapers at a young age in this generation probably had easy access to them in some form, either for their own needs or because of a sibling or other relative. Cloth is virtually nonexistent for this group. By the time their engaged in fetish stuff, there are already lots of diaper fetish sites online and social media, this is where you get the "golden age of diaper porn" as the internet is widespread, but you still need to be able to work a damn camera if you want to shoot porn, which means you have to be remotely talented to justify spending money to create said porn. This is the group that starts using the term ABDL without the slash between the two.
I'm was born in this time period and was raised in cloth, and it was common in this generation. Disposables only started to overtake cloth in about 1980. So, through mid-80s, you're looking at 30% - 50% being in cloth.
Pull-ups debuted in 1989, GoodNites in 1994. That's easily Googled. Half of early 80s kids had no access to disposables, other half it varied.
DPF was -the- original AB site, and it spawned off a newletter in 1980. I remember finding it in 1997, it went online 1995 at the earliest and, at the time, that was basically it.
97 - 07 was the time of individual home pages, forums, and friend communities in ABDL, before we became commercialized like everything else.
ABUniverse started 2007, Bambino diapers 2006, Rearz incorporated to start online in 2006. 2005 and after is when the internet started to take off and everything became commercial.
Anyway, your timeline is way off for the period I personally experienced. You can research the dates online. How old are you? Were you not here to remember it?