Stefan Monnier <monnier@iro.umontreal.ca> writes:

>>> So until Custom ...blabla... I think it's better to use defcustom for
>>> hooks very sparingly, i.e. only for those hook we can reasonably
>>> expect will only be modified by the user's customization.
>> So do you think the existing customization ability for find-file-hook
>> should be removed? Or at least some kind of warning attached?
>
> Yes,

So how about the attached?