Most of the support staff is their customers and users actually.
It’s not users that process refund request, recover your account if e.g. you’ve lost your 2FA method, or any of the other innumerable things you might need to contact Steam support for. I don’t think it’s unreasonable to include the staff that do this as part of their workforce.
There was some discussion of this in one of the admin chats and this seems to be a Hetzner issue. You’re post on SDF has the correct metadata. Also compare my post here on feddit.uk (Hetzner) to this one here (Linode).