Good photographers don't pixel-peep. They check for sharpness, and know how far is too far.
I'm not a good photographer. Certainly not as good as I'd like to be. Given a good opportunity I will pixel-peep. I realized this recently and I think this is one of the reasons I don't enjoy photography as much as I'd like to.
I
have a 24 MP camera. I have intentionally downsized to a kit lens and I
refuse to use other lenses unless absolutely necessary. The sensor
resolution is overkill for this lens so I use the camera at 13 or 6 MP
(yes, I prefer JPEG). I've covered my typical scenes at all resolutions.
What I've discovered is that on average I like the photos taken at 6 MP
significantly more than the ones at higher resolutions.
My
theory is that I like 6 MP because there's no room for pixel peeping.
Seen at 100% the image isn't much bigger than my monitor so even when
zoomed in I'm still basically analyzing the whole photo.
I decided to stay at 6 MP for now but it is a crutch. This will bite me when 4k monitors become mainstream; sometimes it is a problem even now when I have to crop and/or rotate a photo. I'm looking for better ways to stay on course when judging my own photos.