You're wasting your own time and those of your "customers" unless you have at least $750,000 to establish a serious presence, in my opinion. Amateur-hour WISP stuff is fine in a rural area. You're pretending to be a highly reliable capable ISP, and will eventually either overextend yourselves, run out of rubes to fund you as a nonprofit, or once you reach a size much bigger than you are now, get stomped on and obliterated by a much larger competitor that overbuilds your entire network with carrier-grade infrastructure and takes all your revenue.
This thread has to be one of the most overtly hostile threads I've read on HN in a while. What is your concern here? Why do you seem to feel they shouldn't even be trying?
We bypass traditional ISPs by connecting directly at an internet exchange point (DE-CIX IXP) and peering with other networks. This is basically how the internet is formed, by networks peering with each other. We don't need this ISP layer.