gooberking: The radio spoke of it in the context of the US, but after traveling to Japan years ago I am somewhat grateful for the privacy we do have. The urinal on the train to and from the airport literally had a large glass window where people waiting could see you. In a small restaurant they had a urinal basically just off the kitchen with people(women) walking around that was only partially obscured. Then there was a busy public park in Nara where I could count the number of guys taking a wiz in the restroom from 300 feet away just as easily as I could count the people outside.
bansama: I'd love to know which part of Japan you went to (and roughly when). As asides from really old public toilets in some parks (which don't have an external door or a sufficient partition between entrance and urinals), all the public toilets I have seen here in 10+ years have never been as bad as you describe. That is, as far as the actual toilets go. Not urinals. Those things are just disgusting no matter what country you go to. And speaking of toilets, you can pretty much tell old ones from newer. Newer ones only use western style toilets. The old ones primarily have the oval troughs in the floor (but I've never seen one such as that with a door that didn't go all the way to the floor) with only one western style toilet, if any.
Keep in mind my viewpoint may be a bit skewed by my personal issues, but I spent 11 days in Kyoto, taking one day to spend a few hours in Nara. The train with the glass window in the door was to and from Kansai International Airport. In the park was in Nara and the outside wall was only about 3-4 feet high and the rest was latticework leaving the room very open to the public. I used a similar one (though far less open) in Kyoto somewhere. Wherever it was was super low traffic, but I could literally see outside while trying to take care of things. I never had seen rooms open to the public before and did 3 times in about a week.
It wasn't all that way, my rooms were perfectly fine, and I did find one totally sealed public facility which was quite welcome at the time. I'm sure a lot of it is just part of being out for hours at a time. There are some strange situations over here if you are in the right place.
This was way back in 2001, so it's been a while. And to be clear I'm not hating on Japan in the least. I would visit again in a heartbeat. Better with a camera now. Unfortunately not much better with the language.
Nirth: I prefer privacy but I must say there are areas around privacy which I find more important than the idea of waste disposal. I rather go to a public restroom than use unsecure wi-fi for example. Although I'm more afraid of bacteries than people starring at me as I don't care that much so number 1 is a little more convenient as I'm a male, but I try to avoid number 2 in public restrooms as often as I can.
I've been known to travel with anti-bacterial wipes. It's scary what some people will do in high traffic facilities. Which reminds me of the time at an airport when I saw a purple gloved hand reach under my stall wall to soak up a puddle of urine that was heading my way. That was weird and gross.