I used to hide exif data because I used to get tonnes of comments asking me if the lens I used was any good. Or how they wish they had the camera I had so they could take a similar image.
I understand the usefulness for showing the settings used, but I prefer the idea that you learn more by looking at the photo than you do having it all read out to you.
Look at an image properly and you'll be able to see everything you need to know. It's usually obvious if a large aperture has been used, or if off camera lighting has been used etc