This really is an impressive display of foresight. It appears that all the reading Steve mentioned doing paid off. The act of discussing his predictions here on HN is foretold in prediction #6. And those that were off, were still pretty warm.
Every, if you bothered to get your university internal mail unlocked.
I had to send them a mail with the website of my German university and how our e-mail addresses looked, about 6 weeks later I was able tor register.
Note: I went to a university in the US but not an Ivy
Then again maybe he was just a big fan of his MySpace page at the time.
[1] Creepers being defined as people who just trolled social networks looking for friends/sex/whatever, that was new and terrifying to a lot of people then.
If he was in fact referring to the mainstream, then Twitter would be another great example.