Furthermore I use my personal computer as my work computer so there are apps/notifications that are not of a work-nature and are not for my coworkers eyes. Also I don't know if you have company chat or use some chat program at work but I'm guessing you would not like all of your chat's to be public or even just public with your co-workers. What I'm trying to say is I get where you are coming from but I don't think you are considering all the things you might do on your computer that you might not want to hide but at the same time you don't want to advertise.
More and more what happens on my screen is an extension of my brain and so you could say watching me use my computer is watching me think (from the searches I do, the docs I look up, etc). No one would consider giving a running monologue of their thoughts throughout the day but watching my screen get's pretty close to that, for me at least.... I may be an edge case but I think that I deserve some level of privacy. If you want to know what I'm doing ask the PM (or look on my whiteboard) or look at my commits or just ask me, you don't need to watch over my shoulder to know what I'm up to.
Not for the US so could you give me some examples?
Some people have said it may be due to reports that run at night and can't have new data coming in while they run or something similar but I don't buy it. If that's the case then just modify your query such that the data it gets has a "WHERE submitted_date <= <EOD DateTime>".
This is almost always because there is some ambiguously worded regulatory or statutory requirement that says that department or entity has to provide live personal support, and rather than pay the increased staff they just take the site down.
Note: While I'm not a huge fan of cubicles I don't have a huge issue with them, just how ours are laid out (Large cube with a desk in each corner facing the wall). I can see some advantages but IMHO the privacy issue trumps them all.
Again, I want to thank you for your suggestion but I just don't think it will work for me.