I think there are a lot of HN readers who just like the OpenBSD project in general. They may or may not use it for anything particularly fancy (or at all), but are interested in following its developments.
-Results of audits or how they got bizarre bugs to surface with security features/randomization/running on exotic hardware platforms. -Security mitigations and software hardening as they find potential attack surface -Recreating the most common use cases of a common piece of software with <5% the codebase.