That's your own fault, btw, not Apple's. There are multiple documented and easy ways to avoid this (although the easiest way to avoid the above problem is to not view porn, but I know many people here seem to think that it's absurd to even consider that level of self-control), so learn how to use the computer you're sitting in front of and you won't have those problems.
jW
What a nasty condescending reply on all counts.

Who do you think you are to tell him what content he should or shouldn't be viewing on his computer just so you make a point that apple's system isn't broken and buggy. We've read everything here from shift to open the app, option when shutting down a window, system prefs and terminal commands and still the system creates obvious problems for users.
And what's your answer to showing ones full history of opened files within in app expose? Since you are so well versed in exercising self control, you know how to "how to use the computer you're sitting in front of", can you then tell us what a user should do in a scenario where he goes to in app expose and exposes some (non porn) recently used item that he'd rather not show for privacy reasons to the person they are using their mac with? Say in a car delearship that you've been opening competitors brochurers, or with your boss that you been looking at mags or private expenses, or in any scenario where you simply do not want your recently opened files to show up upon an app expose. Is there an option for the average user (without editing and locking plist files, I can do this, but not many are or should be able to go to that level of complexity) for this or is the os in the "computer you are sitting in front of" rather bs in several of its ui choices these days?
The op who said that whoever chose this ui modification must have been a "bona fide dumb ass" seems to be rather young and not so delicate in expressing their view, but he was absolutely right.
It just works, has become yeah well it works, sometimes it has a bug and when you close all windows in safari (one by one) and log out and log back in and start safari, it reopens all windows upon re-opening, and there's also the option and cmd keys when shutting down windows in preview and terminal command and system preference choice, and yeah well as for showing all your recent history every time you do an expose for a couple of windows, there's not really an option for this but you can edit a plist file...
What is all that garbage? Is that it just works? Or is it, it works like crap. And we are supposed to be insulted as well by your likes that we don't know how to use the "computer (we) are sitting in front of"? For crying out loud...

It's that kind of sickening mixture of arrogance and ignorance that you have that's probably shared by the people responsible for lion that have created such a **** ui out of the world's best designed os a few years ago.
Btw, the only thing absurd is the level of condescension in your reply. Maybe you should be viewing porn I guess instead, all that exercise in self control isn't helping all that much apparently.