Loved the picture of the folder in the folder! With proper precautions, I can actually strap my folder on the rear rack of my non-folder... I've never taken it anywhere, but I have considered it. It's a bit... meta. Bike on a bike!

As to the handlepost issue on the Dahons (I don't have one, but) my understanding is that that was a manufacturing issue regarding a specific model year (2008?), and the offending bikes were recalled/removed from stores.

Still, I sit down to climb on my folder (though my SO stands up to climb on it, so I guess it's a matter of preference).