I think 'miffed' is probably putting it a bit strongly. I try to set puzzles that are a bit different from the normal, and I realise that (i) sometimes they won't work as well as I hope, and (ii) they will not always be to everyone's taste (or sometimes to anyone's taste!!)
I appreciate people taking the time to complete my puzzles, and I'm very pleased to get their honest feedback - good or bad - which is helpful to me when producing future puzzles. Of course, I would be delighted to hear that every solver thought my puzzle was the best they'd ever seen (what setter wouldn't?), but that just ain't gonna happen.
I do perhaps get just a tad miffed when people criticise individual clues that were perfectly fair simply because they couldn't solve them, given that the IQ is generally reckoned to be close to the Listener in terms of average toughness, but a bit of comfort eating usually gets me over it ;-)