This article is filled with so much misguided anger. There are a lot of people who are terrible at networking — just like there are people who are terrible at nearly any skill set.
Bad networking and bad networkers suck. So does bad cooking, bad writing, bad marketing, etc.
The good networkers out there are the reason you can make money writing content because they are able to close advdrtising deals with your publishers. The good networkers are the reason business and commerce happens more often than not.
Not everybody is a good networker. Its a very tough and skill-driven ability much like anything else people have to practice to be good at. Sorry you’ve had to deal with so many bad ones but it comes with the territory of being successful.