I'll argue that if none of these are true, you're better off with less than 100x the Big Blind. Although I'm not sure about the last one. Any others I might have missed?
I think, that all four points covered reasons for deep play.

Maybe I'd consider buying shorter, but I just make too much money from #1 , #4 and #2-1 combo (lol stack-a-donk)

#1 exploits LP's
#4 exploits nits and weak taggy wannabes.
#2 maniacs

#3 is interesting, especially "value bluffs". This is probably high stakes concept, when you fire 3rd barrel with middle pair because you think villain is bluffcatching with bottom pair etc.

Or is it an idea "I can flip my hand now and see if it's good, but betting will get to fold some extra hands in opponent's range"...?