/ping [USERNAME]

I was bored this morning and was playing with the redstoner-utils commands, and then thought ‘hmm could I do /ping and put someone elses username to see their ping?’ When I did I got this; “WRONG PASSWORD, 4/3 ATTEMPTS FAILED! BAN COMMENCING!”

I cant tell if this is some super weird bug or an easter egg but I thought I should point it out in case