They fixed this for PC within 48 hours. I learned early on in my FONV experience to save early and often using the menu and it's a habit that's stuck with me (playthrough #2 and I've used 150/1000 saves!) but for PC now it is fixed and it only ever affected you if you closed the game or it crashed. I get crashes too so it was double frustrating but once they disabled steam could support it seems it works. I can't really blame a company for having unexpected issues with third-party software (Steam Client) and I consider the Steam pre-order bonuses worth two days of learning to dilligently save.
No. It is not fixed. It is still happening. This issue is seperate from the steam cloud issue .
I've used about 120 save slots so far. The problem is that you will not know that your saves have been corrupted until you later try to load them AND that any saves you create during a session where the state data has become corrupted will be corrupted as well. Say, for example, that your game state becomes corrupted during the "Come Fly with Me" quest but the program does not actually crash. You have no way of knowing that your saves are corrupt at this point as whatever exactly is causing the saves to be unloadable does not necessarily cause a crash until you attempt to load one. Since it's your day off you continue playing for another... 5 hours and create manual saves every 10 minutes. Only then do you go back to reload a previous save for whatever reason- this is when you discover that ALL of the saves from when that malformed data was introduced into the game state onward are useless.
Part of the problem is this- that the glitch that causes saves to be corrupt and the presentation of an error due to this glitch can be separated by hours of game-play. This has nothing to do with, as you condescendingly put it, "learning to dilligently (sp) save."
See the following posts as examples of this:
http://www.gamesas.com/index.php?/topic/1131288-52-hrs-of-playtime-and-cant-load-any-saved-game/
http://www.gamesas.com/index.php?/topic/1131288-52-hrs-of-playtime-and-cant-load-any-saved-game/page__view__findpost__p__16583383
http://www.gamesas.com/index.php?/topic/1132242-cant-load-saved-files-ouch/
http://www.gamesas.com/index.php?/topic/1132234-wow-lost-everything/page__gopid__16583721entry16583721