I didn’t doxx anybody. Another user his their Raddle username from me in order to avoid being reported to the admins for rulebreaking behaviour, so I used their displayname on a discord server we had shared and on which they had violated Raddle’s terms of service. They later came to me under an anonymous identity and asked me not to use their name from the discord server, so I immediately agreed that I would change to their Raddle name if it was provided. They refused to tell me their Raddle username, and so I could not change the references to their discord displayname on the post.
So in short: They hid their identity to avoid getting in trouble for breaking the rules, made requests of me and made sure I couldn’t fulfil them, and then complained to the admins I didn’t do the thing they prevented me from doing.