One of the nice things about this is the last section (if you can bear to read that long). Both people comment on the strengths of the opponent's BSD: OpenBSD is complemented on "tackling very important project [sic] which would probably have never happened otherwise" (e.g., OpenSSH), particularly also the fact that OpenBSD cares to see their projects ported to !BSD (e.g., Linux). Meanwhile, FreeBSD is complemented on "its [sic] a real “enterprise” oper- ating system and I think it is slowly filling the spot left by Solaris."

At the end of the day, both OpenBSD and FreeBSD are niche systems. They don't have the popularity of Linux, and they probably never will. But that's not a problem. Both of them are major operating systems that do innovate, and hence they're worth paying attention to. That's where the compliment of FreeBSD as becoming Solaris's successor is really telling--Solaris was the operating system that brought us DTrace and ZFS, and it was FreeBSD who I believe had the first container system (jail).