Honest Mistake Or…?
Honestly, we have all been there: we wanted to send a group chat message in one thread or group and ended up sending it another, making a complete fool out of ourselves. This person is no different. Except, maybe, it is a ploy for something that suits his ulterior motives.
If the message he sent was with some of his friends, he is on for a good kicking. Even if he just wanted to brag about his bank balance, they will make sure that he never forgets that he did it. We suggest that now they should all be happy that there is one friend they can count on when it will come to some monetary issue.