Current username: Subsonic
Requested username: Heaven
There isn't another person using the username. ( I can't access the member list, but according to the search function there isn't anyone that has posted under the name Heaven.)
Heaven is a name of a Troye Sivan song that talks a lot about accepting ones sexuality and brings up the questions and topics such as: if being gay is okay, if losing a part of yourself is worth it to conform with society values and standards (in a non-religious scope, but in a religious context "If I can't be myself in Heaven, then maybe I don't want it?), ect.