I think you really mean subjective, but ironically, your actual quote is right. Screen quality can indeed be objective. Higher resolution is always better for quality of an image (for example), all other factors being equal. And in any event, the information does not necessarily need to be objective to be useful. Which is why you need more than one opinion. If you have 50 people saying a screen looks like crap for every 1 person that says it looks great, it might be a good indication that the phone has a crappy screen. And there is never a shortage of opinions in pissing contest threads. They attract phone nerds like flies.