User blog comment:Rappy 4187/Technical Update: November 20, 2012/@comment-31035787-20121124024409/@comment-4674838-20121124031440

http://community.wikia.com/wiki/Forum:Questions_Marks_Randomly_Appearing_Between_Some_of_My_Spaces

^ Also documents cases where extra question marks are showing up. Not sure what causes it though. Maybe it's a bug with the rich text editor.