I think I have a different definition of pixel hunting than some of you. And I don't mean that in a mean way, so I'm sorry if it comes off that way. I'm just surprised to see the term used repeatedly in relation to this puzzle.
I'm not sure how I feel about the notion of a hint / skip function. A hint system seems less invasive, but that's potentially difficult to implement. A skip system just seems...weird to me. But maybe it's just because I'm the sort of person who would rather check a walkthrough than use a built in skip (or, in some cases, even a hint) function. Maybe I've just played too many games that dock you for taking advantage of those features when they're there. ("If I use them, the game will judge me.")
It'll be interesting to see if anything is changed with this in the "Director's Cut" version, but I guess I just didn't get nearly as frustrated as a lot of people. I got stuck, but as soon as I felt myself disengaging I tabbed out and checked the forum for a couple hints and moved on without really thinking too much about it.
I'm always amazed by how differently we react to and approach different aspects of the game.