Catch,
OpenBSD is one of the most secure operating systems there is. If I am not mistaken they have only had 1 remote exploit in the last 7 years. I also know for a fact that the system as a whole is gone over with a fine tooth comb and evaluated for bugs, security related or not. That way sometimes they are actually ahead of the power curver. OpenBSD makes a damn good firewall when configured properly too. I wouldn't say it is garbage by any means. All of these systems have a purpose. I would definately not have a WinXP box guarding my network.