it was actually very controversial back then for being so obviously heavily inflated by fans (one of the last big fandom zombie streaming and multiple downloads attempts before Melon made it harder) but fans pretend they don't remember that I guess?
I remember tons of discussions about kokobop and the weird download/streams ratio and the insane inflation of unfiltered vs filtered numbers.
it still did well, EXO have a huge fandom of course but yeah, it wasn't a national hit or anything.
yes, surprised no one is mentioning this. I too don't remember much but that there was an issue with the numbers ..anyways, it was still a good song and was well received.