while i tried to find the old replay which fofo did mention he is wxc when he just started using this aka wxc. turns out the server didnt keep those old ones, however i did find some replays which is able to prove something as well.
following replays shows the conversation between him and other players, whenever people call him fofo he did respond.
https://entgaming.net/findstats.php?id=7252617(11:53 / All) Pride: you are so tard fofo
(12:06 / All) wxc: please
(12:49 / All) Pride: i ll fuck you sader
(12:53 / All) Pride: tired of you
(13:12 / All) wxc: dont
(13:19 / All) wxc: i gonna f u
(13:30 / All) Pride: sure
(17:25 / All) Pride: you are so pro fofo
(17:37 / All) wxc: don t desesperate
(17:44 / All) Pride: what?
(18:16 / All) Pride: wtfck
(18:27 / All) wxc: stackin is ur specialty
(18:44 / All) wxc: the specialty of NO bollocks guy
https://entgaming.net/findstats.php?id=7253141(36:43 / All) kwaakgegay: def FOFO
(37:05 / All) wxc: dont care : its imba
(37:10 / All) wxc: game over
https://entgaming.net/findstats.php?id=7257762(33:16 / Allied) NovaBlue: lolz that fofo
(33:17 / Allied) Trivago: totally shit
(33:22 / Allied) man_in_the_box: xD
(34:04 / All) wxc: trivago totally shit : 7 kills
(34:06 / Allied) wxc: wx
(34:17 / Allied) man_in_the_box: woop
(34:19 / All) wxc: wxc ! 8 kills
(34:32 / Allied) Trivago: Im noob
(34:34 / Allied) Trivago: u are pro
https://entgaming.net/findstats.php?id=7258079(02:46 / All) wxc: 2 late cause of this no money creep
(02:53 / All) wxc: i pass AFK
(02:59 / All) Pride: omg so just leave fofo
(03:03 / All) wxc: gl & HF
(03:04 / All) Pride: you saw your team
(03:06 / Allied) jamestiu911: wtf
(03:07 / All) wxc: no
(03:08 / All) Pride: why start?
(03:09 / All) jamestiu911: shit dis host
(03:17 / All) Mitchell: 2 sights lol
(03:18 / All) wxc: u cant leave @ start
following replays shows how many players know wxc is fofo, according their conversation, although that can't prove anything, but it is no secret in battleship community. you dont need to watch entire replay, can just go to download page to search "fofo" to view conversations.
https://entgaming.net/findstats.php?id=7247085https://entgaming.net/findstats.php?id=7247183https://entgaming.net/findstats.php?id=7257315https://entgaming.net/findstats.php?id=7273147https://entgaming.net/findstats.php?id=7373738https://entgaming.net/findstats.php?id=7524670