why is yoshiarmy banned

can someone tell me why is @yoshiarmy is banned

Cuz he "accidentally" guessed someone's account (i think)(that was what he said)

no the real thing is that it looked like i guess his password but he actually gave me it after his final topic the accidentally part was a joke
the full story/apoligy is here: https://mkpc.malahieude.net/topic.php?topic=18408