People often talk about success stans but that doesn’t only applies to artist but also with songs and it happens A LOT within the music industry.
From hate to love:
A recent example is Next Level by Aespa with the non conventional structure of the song the first response of kpop stans were bad, many calling it a bad version of “I got a boy’ by SNSD, after it became a big hit in SK they gave a “chance” and like it.
MONEY by Lisa is another one that got tons of trash because of the lyrics even here that is not as toxic as other kpop communities but after it blew up no one seems to care about lyrics anymore and just enjoy the damn song as it should be from day one.
From love to hate:
This one is harder because it basically plays the factor of a song either being overplayed or just “terrorizing” the charts for so long in some stans standards. Outside kpop songs like Despacito and Closer are big examples.
In kpop I find hard to give examples so help me with that one, I have some in mind but I don’t know if they were initially loved.