The problem is that in the early days of the internet, people needed time to grow together. But these days, the barrier to entry is fundamentally higher than before. And even when making one site, you have to worry about various things...
In my view, there is also the point that people forget the fact that as business becomes more sophisticated and technology develops, the basic skills of the people involved need to increase accordingly. The reasons the internet has gotten worse are complex. For example, there is definitely the problem of people trying to make money through advertising and such, but fundamentally, the technical barrier to attracting people's attention has also risen a lot.
The amount of technology a single individual developer has to handle has also increased a lot.