So, every now and then I encounter someone on the Lorebook and sometimes I'd like to put them on the right track.

What do I do? Well, talk pages weren't of much use before the One Site to Rule them All and they aren't of any use now. So I send a private message, problem is according to the site the user doesn't exist: sending PM gives an error, visiting his user profile gives an equivalent of 404. Yet despite not existing the user is making contributions to the Lorebook. I don't suppose there is any way of contacting them, is there?