Thread:Sketchlooksatwiki/@comment-35105388-20180424015832/@comment-35105388-20180424051042

I guess then I've managed to invite hundreds to the Dreamy Wiki doing what you say is impossible. :)

You see, although a user may have never joined a wiki, they still will receive a notification if a user messages them on a talk page or message wall regardless of what wiki this message is on.

It is why the automated staff messages that you receive when you found a wiki tell you not to reply to them, because the staff members will receive your replies if you do, and that might flood their inboxes with the sheer number of wikis being created.