Have you never heard the song Stan(life) by Em(slay my life)inem
That video you posted
Yes they're both the definition of staining
Well, obviously. That's where the term comes from.
It was more playful than anything - I got reintroduced to it today (for....reasons *ahem*) after like a year of not watching it, so it just struck me that it could easily be used for stanning as well.
'You almost feel ashamed that someone could be that important'
'No one will ever understand how much it hurts' - the flopping
'And when it's over and it's gone, you almost wish that you could have all that bad stuff back so you can have the good.' - aka Gaga and the BTW era for example.....