Originally posted by sebberry You're right. Everyone, the camera is perfect in every way and you will not be disappointed. Buy one.
Obviously it hasn't been perfect for everyone, you being a standout exception. It also has been far from disappointing for the majority of us who use it. On the contrary, it's been a pleasure.
I think the feeling from some owners is that you are pushing the story that your experience is the correct one, the K3III is factually horrid, old, and ineffective, and everyone else who doesn't understand how bad the camera performs is either ignorant or dishonest.
I'm surprised that by now you haven't realized that your time with the K3III is the outlier, abnormal, out-of-the-ordinary, the relatively rare exception to the enjoyment and exceptional results the rest of us are getting from it. IMHO either your camera and Pentax lenses are faulty, or something in the way you're using it is. You don't find it odd that almost no other owner is getting the poor results you are with either the camera or the lenses?
If you have not yet purchased the very inexpensive K3III eBook v1.3 then I recommend you do. There's excellent advice on recommended settings for the way you intend to use yours. The two other options I see are (1) to send your K3III in for troubleshooting and/or repair, or (2) take a hit on selling the entire kit to fund a move to a system you believe will do better for you. The path of least resistance is the eBook.
So far for you personally there's nothing pleasurable about your camera and some of the lenses, and that can possibly change depending on what you choose to do about it, but regularly telling the rest of us we shouldn't be pleased with ours either is non-productive. We simply are not experiencing what you are using the exact same gear.