I would get behind the Hyperbola project if they intended to soft fork OpenBSD and go the LibertyBSD route instead of a hard fork.
A hard fork is a dead end if you ask me and an engineering nightmare, given the seriousness of OpenBSD development, their existing kernel (hyperbola) is already woefully behind upstream. Even if they pulled it off, it would be security wise the same as running old OpenBSD versions from years ago.