While admittedly it is quite minor, it has always been a pet peeve of mine when fans excessively praise an idol's ability to the point where a sub-vocalist is touted as one of the best vocalists of the generation or something lol and we're talking about a standard sub-vocalist in a group that doesn't stand out vocally.
That in itself is not that irksome but I was scouring through Twitter and YouTube comment sections (which honestly can be a really horrid experience depending on the video) and saw fans getting agitated at each other because someone thought calling a lead dancer of their favorite group just "decent" was blasphemy. Now, I understand why you'd hype your faves up especially if you're relatively new to the K-pop scene because those "Who is the best vocalist/dancer/rapper in x gen" shit gets really brutal at times but getting mad because someone else is not always calling your fave GREAT, SUPERB, BEST OF THE BUNCH at something is