At least one of the more obscure platforms openbsd supports are often due to someone(one person) willing to step up and do the builds.

I love reading when the luna88k maintainer comes out of the woods a month or two after release to announce that the packages are done building. Realisticly I expect there are a few 88k users. But based on the radio silence I see on the lists it feels like there is one heroic user who really likes openbsd and is willing to make it happen. I find it very inspiring.