They occasionally bring out cosmetics (chairs, clothes, pets) designed by players.
They sometimes make balance or convenience ("quality of life") changes players are asking for, although it's hard to tell whether it's coincidence or not.
I have never heard of them implementing content (class, story, pq, etc) suggested by a player. Certainly not anything suggested outside of Korea.
- Please do not make threads directed at the Community Managers/Volunteers. They will try to offer assistance if they can but please understand they may not comment or have information to provide at the time.