Why are so many bot comments under kpop mvs

there's a huge infulx of bot comments, what's the point?

currently pink venom has same comment

"yesterday is history"
"tomorrow is mystery"
"today is gift"
"that's why it is called present"
BLACKPINK IS LIFE!!

all over the place, is it blinks or some one else doing

Quote from jinaland

its antis trying to freeze views or clout chasers

Quote from LalisaLovesNnie

To try and lower down views. They do that to other groups too, and even use emojis.

Does it really work?