Its a sarcastic joke on Shimakaze (SE) players from World of Warships that don’t take the extra health perk making them incredibly vulnerable (and bad) at the game thus accusing other SE players with 21K health of cheating.
quite interesting that all top clan members that are playing at KOTS have SHIMAKAZE with 21k hp. did they download cheats on hp and wg overlooks it? man, the more you pay the more you get, better stats, better mm, better ships…. while i get the team that is always losing.