I have just seen an answer and three comments with their usernames all acting weird:


What's going on here? It's definitely not migration, and the "deleted-users-username-change-to-user-id" thing had already occurred on 2012 which is 6 years earlier than the year the four posts were uploaded. Is this a bug? Or by design?

Link to posts: https://musicfans.stackexchange.com/a/6478/7708

1 Answer 1


It looks like the question was migrated from Music Practice and Theory. These accounts still exist but that users are not member of Music Fans.


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