Basically the utility of like system is…if you go into a matchmaking dungeon system with random people…and you saw someone being extremely good at tanking, healing or dpsing and you want to play with them in the future…the Like System will force the system to TRY to match with them if they’re looking for the same dungeon/mercenary…so yeah, it is useful if used right…
But here, they use likes the same way facebook does, if they could get naked and ask for likes, they would do it… Honestly, I believe is just stupid to have lust for likes… but well…people is stupid in so many ways