We were very, very lucky being in the first round of Y Combinator because that alone generated a lot of interest. A lot of readers of Paul Graham were just excited to see what was going to come up. And we were the first ones to launch.

The surveillance state has run amok. Technology that's enabled us to send selfies 24/7 - not that valuable - has also enabled us to be spied upon us 24/7.

I hate phone calls so I believe in a telephone armistice. To me, the idea of calling someone unprompted is basically saying, 'Hey, stop whatever you're doing and talk to me right now.

Even if you have no interest in starting a company, having the experience of having ideas and doing them, that's muscle to exercise because that's what people are going to want to see. That's what makes you different.

The best part of being an angel investor is seeing these kids coming up with companies that get way more traffic than Reddit had when we sold it. I think, 'Are you kidding me? They're just kids, and they've done so much.

The Internet is such a tough marketplace because everyone is a click away from going back to a cat photo, or going back to whatever else they were doing. You have to win them over, and do it quickly, and do it by making something people actually want.

You can throw - and we've seen plenty of these kinds of companies - millions of dollars in advertising for a website or a service, and in the end if it's not useful no one's going to use it.