Erotimatikophobia is the fear of question marks. It may be a unusual phobia, but it is far from being fake, and it is actually real and can happen.
Victims of this phobia
It is rather an unusual and rare phobia, but it may happen specially for people who already reported unusual types of fears and those who are vulnerable to these kind of phenomenons. (Like neurodivergent people.) It may also be triggered by traumatic events, circumstances, contexts. Or it may also be related to written questions.
"As someone who probably has this phobia as a kid, i tell you i was very scared of question marks, i couldn't see one and i would get really overwhelmed and scared, avoiding question marks. The fear faded with time."