Do not insult a Vocaloid or UTAU user, viewer, creator or voice.
Songs are to be either uploaded through Youtube, SoundCloud and Nico Nico Douga.
Discussion of illegal Vocaloid(Pocaloid) is okay but do NOT share links that contain it. Do not try to get people to help you get illegal versions, otherwise you will get banned.
Fanart is to be appropriate for all ages, fan fiction is to be appropriate for all ages and no inappropriate language in titles or comments.
Songs, if NSFW tag it with [NSFW]. NSFW is defined as gore in PVs, sexual PVs and explicit lyrics.
Do not self advertise in your title, but you can in the comments of YOUR post.