Whenever you submitted a request to change username, did the Mods ever try to get you to choose something else, because, for whatever reason, that individual mod did not like it ? After you explained why you wanted said non offensive new username to apply, they still tried to talk you out of it ? Well, such a thing has happened to me - did the mod who was dealing with your request do something similar ?
Only staff would handle username changes, not mods. If it was determined to be offensive or if the name was in active/recent use by another account, they would not allow the change.
Whenever you submitted a request to change username, did the Mods ever try to get you to choose something else, because, for whatever reason, that individual mod did not like it ? After you explained why you wanted said non offensive new username to apply, they still tried to talk you out of it ? Well, such a thing has happened to me - did the mod who was dealing with your request do something similar ?