Wow. I never heard so many people complain about having a distinct advantage over other players.

I like playing open for no other reason than because I think it's more fun. I didn't really even play this game much before I discovered "open". But, again, it comes down to personal preferences. I think there are enough open players out there to conclude that we are not suffering from some sort of mental illness because we like to play open.
That being said I thoroughly enjoy beating closed players while playing open. So, please, feel free to try and close me in a small tight box. In fact, JJ Bean was doing that to me last night. I wasn't complaining at all. In fact he was REALLY good at it. It just makes the game more interesting and gives me something to work at countering. At least that's somewhat of a challenge. I find many players just make huge boxes and basically camp outside the box.
As for creating a forced open server. Tested it out with Bort on one of the FA servers and it really didn't work. I mean you couldn't close, but you also couldn't squeeze in tight spaces. Also, half the fun of playing open is learning to control your cycle at high speeds and not close. It's an interesting idea, but again, I don't mind playing people who close...as long as they play closed in a way that is interesting (i.e. like JJ Bean). But I'll try and toy with it some more and see if there is a way. I'm pretty new at the server settings so...
Anyway, this topic is getting outta hand now. Close/Open/Whatever. Whatever floats yer boat.
Wadda ta to the damies. Supa tawn.