Yes, it already did it twice Today, on January 8th 2018 ! :D 

- It added two Question Marks to my chapter title about Headphones in This Book! - so I looked at it & thought 'Where did This Come From?' ( ?? ) - I Didn't add it, I put only One Question Mark, not 3 in that Title! XD

- It also added an additional Question Mark to my new chapter of 'I Dare You, My Reader' book so I noticed an unnecessary question mark I didn't put there after the title 'You can Dare Me now'! 😤

Lol