"If you tasted one whisky you didn't like, it wouldn't stop you trying others would it?"
That's true - except I'm not currently wary of ALL authors, just the output of one!
If I had a bad experience with a whisky from a particular distillery (Fettercairn and Littlemill spring to mind), then I'd be wary of buying another bottle of stuff that came from that distillery - unless I got a recommendation from a reliable source re a particular bottling, of course.
For some people on this forum, the best example might be Bowmore? Many are reluctant to give it another chance, as they have had a bad experience re FWP (or whatever we should call it in the light of recent debate - if indeed it exists!). Others (less cautious, perhaps, with their pennies) have continued to buy. They say that it's back on form (if it was ever off form), and encourage us not to be put off by any previous disappointments.
I've had great experiences with Gavin Smith's books in the past, and I'm looking forward to reading his latest offering (Santa willing)