PS3 had an Album metatag you could abuse, yes
Ok, so you'd have like an RPG folder, a Shooter folder, whatever. So you just want to see your games in custom groupings together. Why? Does your thought process decide genre, then game? I mean that's an understandable presentational aspect. I get it. You want to organize them just how you like. But does it get you to a game any faster? And do you actually - be honest -switch between
that many games within a given week?
What I'm getting at is, I agree that a folder can help a user "get back" to an old thing faster than the current system. But I would counter that the custom folder itself really adds nothing for functionality that wasn't there before. I would be more inclined to say, Sony, fix the fucking Download list. How about a Calendar view? Filters, are what are needed. Custom folders... personally I think they are a bit of a trifle.
That "Netflix" folder? That folder SUCKS. It fucks up my newer PS4-owning friends. They call me up and say "where is Netflix, you said this thing has Netflix!" and I need to tell them that the App looking tile called Video is actually a special folder, within which Netflix resides, and never leaves, and doesn't behave like any other app, some of which DO sit on the top level bar (Media Player).
See above
Also the iPhone/3DS style menu is designed for touch/stylus, it's not good for a TV and a controller.
Also think about the support issues that custom folders cause when someone calls up Sony and says I can't find my game. "Where did you put it" "WELL it's supposed to be in a folder with a cat head and a little skull but I can't find it now..."
For these reasons I want custom filters, but I don't think perfectly customizable folders is a great idea. I know people do weird shit with their phones like perfectly blank desktops and docks with 4 icons each containing 9 more micro icons and I think, wtf. And they love it!