Googling the phrase "fear of hell" turns up a lot of Christian angst. Including recursive angst over whether you'll be sent to hell anyway if you're afraid of being sent to hell. For example:

I want to be saved and go to heaven and I believe, but I also have this terrible fear of hell and I fear that it may keep me out of heaven. PLEASE HELP!

And here's a hadephobic testament from the 19th century.

From the point of view of a rationalist who takes the issue of Friendly AGI seriously, the difference between the Christian doctrines of hell and the possible hells created by future AGIs is that the former is a baseless myth and the latter is a real possibility, even given a Friendly Intelligence whose love for humanity surpasses human understanding, if you are not careful to adopt correct views regarding your relationship to it.

A Christian sceptic about AGI would, of course, say exactly the same. :)