Hierarchy, oh yes. People in a gym, especially new, shouldnt start to immediatly express annoyance, but rather find out wether something is customary, or attentionwhoring.
Someone trying to go for definition and symmetry, has to take a look after an excercise at the target area in pump. Its what all bodybuilders do.
If its a guy making shitload of uneccecary noise, is posing in the middle, and is seeking eye contact. yeah, thats a douchebag.
I'm having this simular thing when doing deadlifts. i have 6 warmup sets and 3*3 worksets of a decent weight. When hitting the floor after each rep, that will make noice, when i'm putting it down at the third rep, its definatly making noise. Beeing 1m91 and not dat flexible has disadvantages, most people realise and dont say anything. or jokingly ask 'is that your warmup'
some are annoyed and give me a look, i dont react to it. Its not like i'm trowing a 20kg barbell down to the floor after a bicep curl.
I rarely use my posture. Unless some douchebag cunt is trying to unload my weights despite my towel beeing on the bar, or trying to squat himself, also with my towel beeing on the bar. I give those a rather direct remark i'm working with that.