I’m getting an error at that link.
While working for a company about 15 years that made web based educational software, we had a potential client try pitching us on a website he wanted us to build.
He had lots of vague hand wavy ideas, but he had two very concrete ideas that the site absolutely needed. A) It had to be, “in the cloud”, and B) it must be, "Web 2.0”.
Before FB, just getting an email from someone that they forwarded from someone else was enough for some people to accept whatever the email said as absolute fact and forward it again to everyone they knew.
Reading through the comments in this thread, I’d just like to mention how amusing it is to see so many people in the fediverse arguing in favor of walled gardens and vendor lock-in. Like, do you even know where you are?