A proper survey or data about app store habits say a lot more than a questionable testimonial. Yet somehow, this little sub-genre of reporting still exists. Its like there's this constant adult neurosis about what teenagers and college students think, especially if your paycheck stems from the spending habits of that demographic. This neurosis lets us overlook a lot of things, the same way people looking for spiritual answers will sometimes flock to a known conman, cult, or abusive religion.
Funny how a lot of us were bright young kids, like you, but have become milquetoast adults falling for the same old tricks. Sounds like you're on the right path though. Don't become us.
For me, one of the most interesting things about this piece was the total bafflement with Twitter. Not that they didn't like it, they just didn't get it. At the same time, concerns about professional life were largely restricted to "Who will be the first to hire me and will my social life be used against me?"
In other words, the way that a lot of Twitter users treat the service as a huge and never-ending professional conference (with frequent flurries from actual conferences) is totally lost on people too young to have reached this stage in their working lives.
My takeaway from this is not "Kids don't use Twitter, Twitter must be doomed". It's that Twitter is for grownups (mostly), and that it's normal for people to age out of some networks and into others, just like they age into and out of music, cars, clothes, jobs, neighborhoods, and pretty much every other aspect of cultural life.
It's not that there's anything wrong with the basic idea - it's just that Twitter, the company, constantly wants to make it into something it isn't. And invariably fails at that.
I now use it for my geeky posts, and occasionally, rarely, to check my feed for interesting tweets from the masters of the startup scene.