"Hipsterism" is so broad you really cant tell. Although I dont know how the hell indie, shoegaze,experimental now is considered hipster music lol
On guitars they use all fender except strats
Gibson except flying v , lp customs
Any other guitars except metal guitars
Expect od reverb maybe fuzz if brave enough
How to spot a hipster: You really cant pinpoint what they're using if we talk gear because no hipster would admit they are one haha. Never mind the music they play it doesnt matter listen first if they constantly whine about other bands to make them selves more credible. Thats how u spot one also the unnecessary "word-play". Sometimes its not about the music anymore its about creds and coolness, rarity. that sucks Lol