He is the Server dun dun duuuuuuunnnnnnn!!!
He is god, dun duun duuuuunnnnnnnn!!!
He is the magic number dun dunn duuunnnnnnnn!!!
But seriously ... its a network error where that person will forever have 0 ping as it won't register the actualy ping so it displays a default of 0, this of it like the start of any sporting event ... everyone starts with 0, thats just default.
The 0 ping offers no benifit but is negative because you don't actually know your ping.