CosmicSwordsman is one of the highest-ranked For Honor players on Xbox. Playing the Orochi class, they have killed 5384 players and died four times, according to their For Honor tracker network page. They have lost once.
According to For Honor players who have encountered them, CosmicSwordsman quits games they might lose. After they have died once, players say, they book it. That keeps their kill/death ratio in the top 0.1 per cent. It isn't a very honourable way to climb to the top.
For Honor players have asked for a leavers' penalty for months. Players like CosmicSwordsman would be soft-banned from playing, and rage-quitting, at such a high rate. In the meantime, on /r/ForHonor, Redditors have gone on a tear against CosmicSwordsman. Although moderators have deleted several posts detailing their exploits, citing a policy against witch hunts, their name is still evoked on the daily. Gamers threaten CosmicSwordsman, telling them to "get fucked". Their name has become synonymous with toxicity.
Others take this rage-quitting more lightly, asking CosmicSwordsman to do an AMA or photoshopping their tracker network page:
On Monday, a /r/ForHonor moderator threatened to ban Redditors who contribute to their infamy. CosmicSwordsman himself is banned from the subreddit and did not respond to a request for comment. According to For Honor players, CosmicSwordsman has defended themselves by saying they're simply very, very good.