Think about it as if they weren't the same person. A seer is always vulnerable and at risk of kidnapping etc for people who want to use their powers. He was not hiding his true self because he has the power to protect himself and to test them a bit, but they didn't know that. From their perspective they "sold" him out to someone who they don't actually know, and has the power to harm him just because they wanted to curry favour with the strongest dude. Granted, they might not have thought so far, but it's common sense that a seer is vulnerable, and you really shouldn't go around talking about it if you actually cared about the seer, or at least had some loyalty or even maybe some logic/common sense.
Yea at least bodyguard dude didn’t say the name, BUFFER GIRLIE STRAIGHT UP SAID THE FULL NAME!!! Bro even if “black scythe” was trustworthy (which they didn’t even make precautions against in case “black scythe” wanted direct info and then threw them out) ANYONE ELSE COULD HEAR THEM SAY SEER AND SAID SEER’S REAL NAME!!!
Yup. Pissed me off. She's his real life friend and she didn't even think about the dangers she was putting him through... How if there was someone listening in on their conversation? Like come on.. So many people are watching Black Scythe so some are definitely listening in to get some intel I mean if I was one of the bystanders and I have the skills to spy (listen to conversations) then I would definitely do so, cuz it's a death game lol

why is he mad though? he's the one that's been telling them about those infos without even hiding his true self LMAO