Some do, many claiming they're "quick readers".
Should you, accidentally, put some password into the text, which can later be used to unlock some hot easter egg, and you happened to place a randomizer on that, causing it to be different for every playthrough, then the "quick readers" will be the first to ask for a seperate CG download. Or spam us with requests for said password.
Ofcourse, this could also be inversly used for hiding a safeword within the text. Making a later scene go really extreme when the correct safeword isn't picked from a list of ten.