Somewhere in the Universe a supernova or a gamma-ray burst probably wiped out a dozen advanced civilizations between the time I typed 'Somewhere' and the time I typed 'typed.' Fretting over anything less is, by definition, sweating the small stuff.
I don't expect a leopard to change its spots, but at the same time I believe it's possible to consciously nudge yourself in one direction or the other on both axes.
I'm speaking from personal experience. When I was alone for prolonged time I noticed how miserable watching TV makes me. Only after that when I ditched TV the calmness and true peace that OP wrote about came.
Human contact really plays on the same strings in human brain as addiction complete with binges, hangover and withdrawal. At least for me and the OP it does.
If you work in tech, start some workshops on something mainstream in your local coffee shop/community centre ('blogging for charity workers' or 'podcasting for beginners' or something)
The difference is: even though she makes it seem like being alone might be desirable she then twists it in the end; in my opinion she is clearly a VERY social person with healthy relationships and a suitable amount of casual sex and lots of friends. She is coming from the other end of the spectrum, looking in the direction of loneliness with a sort-of "greener pastures" attitude. I would guess she is probably so very social and has SO many friends and hookups that a little vacation from all that stress of handling THAT many people is all this was about.
You, and me too unfortunately, sound like you are coming from the other end of that spectrum...
Therefore, from that perspective this article feels mean or ungrateful when you look at it like that - first world sort-of complaining about having too many friends and casual sex.
I live an overly solitary life, and I crave for company. My social circle is nearly empty, no GF, and almost all my friends have moved to other cities, so I have just one close friend.
Damn, I need to go out. I need more human contact, not less.