Equador was rude, but he's got a point. If website development and design is the way you make your money and pay the bills, then you can't afford to work on the cheap. You're getting some flack here because cut-rate operators make it much harder to make a living wage in this business.
When your jaw drops at numbers like $80 / hour (admittedly more than I make), you need to keep in mind that those are billable hours. No freelancer on earth works 40 billable hours a week. Not if they need to sleep much at all. There's also the matter of taxes. Nobody withholds taxes for you when you're a freelancer, so 35% of my income goes directly into a savings account for payment to Uncle Sam. Then there's car payment, insurance, housing, food... If I cost my clients less than a pizza delivery, I'd never even come close to breaking even.
Example: I don't know how you can possibly solve a client's problem in 5 minutes, since it takes me longer than that to have a serious discussion with a potential client about their needs and business goals. Once you give these people (who sound like serious phpbb newbies) their default-looking forum, do you leave it at that? What about some lessons in how to manage a forum community and deal with spam? Advice on how to promote the forum, build community, and eventually promote moderators from among the most involved users? If you have extensive experience with setting up and managing forum communities, then you're selling yourself short. You might have much more to offer your clients, and they should be willing to pay a fair rate for how much easier you could make their lives.
You seem to be in danger of playing the role of the guy who'll slap a band-aid on a wound -- any wound -- for a super-cheap rate. Those people who ask (and get) $80 / hour? They're surgeons. Wouldn't you rather be a surgeon, too? It's hard work to get to that level -- not just acquiring the skills, but building up the recognition for them. Beats slapping on hundreds of band-aids a month, though.