>>630354153 things
-after first 2 weeks do you drop whatever you are doing to not late for their stream?
-if you missed the stream do you feel missing something important and watching the vod or at least timestamp of said stream comes to mind first?
-do they make you excited when you hear even just their greeting line?
if yes to all thats your oshi or at least top 7 fav chuuba
skipping few streams where they do something you dislike is fine, watching 12 streams of your oshi's valoslop when you hate it is a quick way to get burned out