Yes, it did.
T-ara brought me in 2019 into kpop. But they were practically destroyed in 2012 by netizens. I also heard a lot about fanwars and saw comments in variuos comment sections. So i just listen to songs i like without supporting any of the artists.
Since the groups i liked the most, like t-ara or sistar werent active anymore, there was not that much to stan anyway.
Only when i discovered Blackpink i like the girls and their songs so i might have supported them. But the image i had from blink was that they are allways fighting yg over everything related to the girls. fighting each other with all the solo stans. fighting once over wo is the biggest gg and fighting all other fandoms wo became popular and may treaten their success. So i stayed away from it.
I have to admit that all i thought i knew was hearsayings. When i cheered for Brave Girls i had some bad expectations about other fandoms may become toxic. So i was very surprised and ashamed when nearly all other fandoms did the complete opposite. There must be a lot more but i specially remember blink, atiny, uena, army and once as beeing very nice and kind.