Matthew Charles Mullenweg (born January 11, 1984) is an American entrepreneur and web developer. He is known for developing WordPress and founding Automattic. (wikipedia)
I think that all services will have downtime. No matter how much you prepare, have redundant systems, or audit, there will periodically be a black swan event that is completely unlike whatever you've experienced before. It even happens to Google!
When there's no one you can point to, or when something goes wrong, it's your fault - that level of responsibility and accountability is pretty interesting.
If you want to be good at something, you really have to work at it every single day. You have to work hard at the things that are hard. Otherwise you are just treading water.
While I personally believe strongly in the philosophy and ideology of the Free Software movement, you can't win people over just on philosophy; you have to have a better product, too.
Don't think about work in your bedroom or relaxation area.
You can't build everything and there is no more a killer feature. Everyone has a different killer feature.
I was raised Catholic, and I can get incredibly guilty about mistakes.
WordPress, it's a complex tool; it's like the back of a digital SLR... but that doesn't work on a phone.
People might start with LiveJournal or Blogger, but if they get serious, they'll graduate to WordPress. We try to cater to the more powerful users.
Much of the lifeblood of blogs is search engines - more than half the traffic for most blogs.