This article speaks to a point that most miss:
The business model can be as sexy, or sexier than the idea itself.
When we build something that is boring to some, I wonder if we forget the magic of what we do.
What is boring to us is magic to someone, stuck suffering with managing details. It's nice to see the maturation of developers who do for the world what's being asked of us: help everyone everywhere, with software.
About B2C or B2B:
1) It's a preference. A reality is, there is not as much B2C out there as we think. Too many consumer facing "successes" do not take money from "customers". Why? The users are the product that are sold to advertisers. They often ask businesses to pay, maybe by advertising, and it's a lot of work.
2) Consumers are quite fickle, irrational and emotional decision makers. They will often think about any decision over $5/month.
Small businesses, on the other hand, don't think about $50/month too much. They're fairly logical (a good fit for developer's tendencies), and very much understand and make decisions based on value -- saving them, or making them money. They'll also be more forgiving about understanding features-based marketing instead of benefit-based marketing if you can't dial in your copywriting. In short, there's more flexibility to learn and still do well enough to keep improving.
3) If you let a sliver of your talent tackle a B2B problem that customers will pay for, you get to keep the panacea much easier: Work on what you want every day without fear of paying the bills, or pursuing a swing for the fences idea without fear of failure or running out of money. Not everyone gets to live in the Valley. I'm sure I'd be open to other possibilities if I lived there, but I don't right now.
If you're out for the first success or two of your life, consider this: check any ego and immature thought habits to fit in. Exchange them with discipline, to learn what you need to about the fundamentals of building a business, it will serve you very well when going after the B2C ideas.
Almost everyone who tries to fit in, inevitably gets left behind. Do what others aren't willing to do to build a business that makes money, because it's worth way more, to customers, and VC's.
As every single person on HN gets older, they will have more responsibilities because of the other things in their lives they want, and cost money every month. There's a chance now to address those very easily and get some great business development experience. That doesn't sound like much to some, but startups are a longer haul game than anyone ever admits.