Fear University question

Fear UniversityDo any authors make use of editors these days? While I find many books with great story-telling, entertainment and fun, I am so completely put off when I discover that the words 'taut' and 'taunt' are apparently interchangeable, or when the author believes the past tense of 'drag' is 'drug'. Lot of other nonsense too, such as the plural of 'mouth' being 'mouth's', or 'who's' and 'whose' used incorrectly. Seriously, I'm not some old schoolmarm insisting on uncompromising rules of grammar! I just want to be able to read without being yanked from my suspension of disbelief by careless, thoughtless authorship.