Okay so in order for me to explain what he did, I have to explain the game.
Where Winds Meet has Co-op enabled all the time. Even if you disable Co-op, once you hit a certain level, people will inevitably wander in your game. So, for a mobile phone player, its kind of difficult because once people get in your game, your phone starts overheating.
So he disabled co-op effects, he can't see anyone else in his game so he can just ignore everybody and play normally.
Next, you can play as a girl or a boy. For boys, this is mostly annoying, because you're constantly challenged into fights by bounty hunters, or chased around by guilds in order to get you to join their guild.
If you play as a girl, the girls are more respectful and the only problem you'd get would be boys giving you marriage proposals (there's in-game marriage). Girls leave girls alone. My brother and I share a Genshin account and what we both like is exploration. Leave us alone in a game and we just like to wander around. He brought this mindset with him in the game and it kind of shows in his playstyle.
Next, playstyle. This is the one game I don't share with him so as he explains it, he likes to paralyze people and then poke them. Once the paralysis of one attack wears off, he has like six more to hit you with that causes paralysis again. And then you get poked to death while paralyzed. This looks supremely awkward and funny when you watch it because a cute girl is literally stabbing to death a person who can't fight back.
Lastly, there's guilds. I have no idea the name of the guild, but they literally need to get married and divorced once a day and social extroverted people like it. He got invited because they saw a strong cute girl stabbing a guy to death and they liked him. He got at least fifty marriage proposals on that day.
Along with the marriage proposals, he got a ton of offers for free stuff. Naturally, as a morally good person, he refused the free stuff. As a Chaotically Good Person, he also told them he was a sixteen year old girl when they asked. He is a thirty five year old man. He pretended to be a shy sixteen year old girl so well that people believed him!!! (apparently, he just pretended to be me at sixteen!!!!!)
This guy literally seduced a whole guild of men into liking him so much that when the game updated and his phone couldn't handle the recent update anymore, he said to them, "Ah, my parents found out I'm playing and took my phone, this is the last time I'm logging in."
Someone literally asked, "do you have a bank account, I'll send you enough money to buy an iPhone right now."
At this point, I stopped talking to him because I was so embarrassed but that's how my brother got into a situation so awkward that he can't log into Where Winds Meet anymore, even if he got a better phone. There is literally a manhunt for him.