Why won't Mac App Store remember my password? + Other Issues

Question

It's infuriating that whenever I want to: install something I've bought, buy something, or something else, it asks (yet again) for my pwd. Is there some way to tell this ******** app to forever remember my pwd?* Also, a few wks back (not longer after I'd finished a completely fresh install of OSX 10.8.5) all the apps in the "purchased" section had a little "x" next to them. Stupidly I pressed that x on one or more of them, & bizarrely the apps forever disappeared, what happened to those purchased apps of mine?
Also, in the purchased apps section it's claiming that a number of the apps are "installed", again it's ******** because I've not installed those apps on this new env! So, how do I get access to those apps via the Store? Also, GarageBand/iMovie/iPhoto they're all stock apps, right? Why when I search in Spotlight aren't they showing-up on my system volume? Instead they're only showing-up on my attached external HDD, which has a CCC backup of my prior env/install. of OSX. Same for 2 other non-stock purchased apps (Pocket/Trillian), they're showing-up in the CCC backup volume, so Mac Store thinks they're "installed". Three other purchased apps (Airmail/TweetDeck/Wunderlist) I was given the option to install or update (can't recall), so they're now in my new OSX env. Finally, why is it showing stock apps in the "purchased" section, I did not purchase those apps, they came with OSX, which came with my laptop!
Any help on one or all of these points would greatly appreciated, all the best!
*While we're at it, can the same thing be done for iTunes? It does the same kind of infuriating stuff

Answer 1

It's infuriating that whenever I want to: install something I've bought, buy something, or something else, it asks (yet again) for my pwd. Is there some way to tell this ******** app to forever remember my pwd?
Based on this over-the-top post, it's obvious that you would also be here badmouthing and blaming Apple when the app remembered your password and a friend or aquiantance bought content using your account. The password is your security that no one can hack your account, on your Mac or from someone else's Mac.* Only someone very shortsighted would want to hack the security. Your password is usually good for 15 minutes. During that time period you can make purchases without having to re-enter the password. When the clock has ticked down the password is required again.
Also, a few wks back (not longer after I'd finished a completely fresh install of OSX 10.8.5) all the apps in the "purchased" section had a little "x" next to them. Stupidly I pressed that x on one or more of them, & bizarrely the apps forever disappeared, what happened to those purchased apps of mine?
You hid the apps, they can be unhidden.
Hidden Apps -
http://support.apple.com/kb/HT4928
Also, in the purchased apps section it's claiming that a number of the apps are "installed", again it's ******** because I've not installed those apps on this new env! So, how do I get access to those apps via the Store? Also, GarageBand/iMovie/iPhoto they're all stock apps, right? Why when I search in Spotlight aren't they showing-up on my system volume? Instead they're only showing-up on my attached external HDD, which has a CCC backup of my prior env/install. of OSX. Same for 2 other non-stock purchased apps (Pocket/Trillian), they're showing-up in the CCC backup volume, so Mac Store thinks they're "installed". Three other purchased apps (Airmail/TweetDeck/Wunderlist) I was given the option to install or update (can't recall), so they're now in my new OSX env. Finally, why is it showing stock apps in the "purchased" section, I did not purchase those apps, they came with OSX, which came with my laptop!
1. The Mac App Store (MAS) can see it's apps on the external HDD because the MAS uses Spotlight to know what's installed on your Mac. So if you want to solve this issue, temporarily unmount the backup drives so the MAS doesn't see the installed apps.
2. The iLife apps are not "stock apps" they are a suite of apps that Apple is giving to you for free with the purchase of a new Mac. They are sold in the MAS. "Stock apps" are installed and updated with OS X, they are not sold in the MAS and do not appear on your Purchases list. The iLife apps are not stock apps, which is why they show up in your MAS Purchased list, otherwise you would never be able to update them.
3. You were obviously given the chance to "update" those 3 apps that were installed on your backup drives, which is why you now have the most recent version of them on your new Mac.
*iTunes and the Mac App Store use the same account. Both apps have the same password security protocol.