
The last digit's cut off, but it's clear as to what it'd be. So I ask you, what the forget?
Based on the map, I believe the host would've been Destiny, and in which case he should know the simple console command to change the value of the current players in your server.
So no, not a glitch -- he's just screwing with you.
(That, or, you edited the ServerSO.currPlayers field to mess with us.)