If you have a fantastic idea you're really passionate about and are making $100,000 in your job, if you can set aside some of that to invest in servers or contractors or other folks, that's actually the best way to start a business in my opinion.
The promise of the early web was that everyone could have a website but there was something missing. Maybe the technology wasn't ready.
Just because someone uses Twitter doesn't mean they shouldn't use WordPress, and vice versa.
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.
Ultimately, Captchas are useless for spam because they're designed to tell you if someone is 'human' or not, but not whether something is spam or not.
It turns out that social networks drive a heck of a lot of traffic to blogs.