Ugh, weird report?
Common Sense is a must have, right?
AND 1 and AND 2 is completely different, and also, mario is a popular name, everybody could use that, even the name hitman, even "random" is popular.
AND 2 is mario's 2nd name, it is in his user-picture actually and you cannot kick him with the reason "he fakes AND 1" cause it doesn't makes sense. He cannot fake his friend, he named himself next to and 1 cause he is his friend.
(i'm not sure 'bout the invulnerability of VIP in the command "change name" though)
[you could feel bad about it, but you can still be forgiven,]