>I know of absolutely no service which failed because it couldn't scale So what are some examples of services which failed because they tried too hard to scale

>I know of absolutely no service which failed because it couldn't scale So what are some examples of services which failed because they tried too hard to scale too early? For example, when your network could handle 20k users, was there another network that could have already handled 500k, but they failed because they started a month after yours?