I don't understand with users who're saying @OP is exposing forum staffs' privacy when they're the one who share it. If someone share address, everyone can view that and there's nothing wrong. But it's wrong when they have an another address which never been posted, you share it to everyone.

I'm sure if such amount isn't the total Bitcoins they have.

Guessing their total Bitcoins is like guessing how many Bitcoins are lost forever.