Oops, sorry DiaperLines, I took you literally, something I do rather a lot. I was keen to post and read what other people think. Thanks for an interesting thread.
I think WoXxY makes a good point. Diapers are worn on the crotch area, so some pics of them are going to be crotch shots. I think Peachy is right too about comparing. As a girl, I haven't done the male locker-room thing! But, I do immediately compare my own nappy to a picture if I see one. The things I compare though are how it fits and whether they pulled the side bits flat etc. I might be a little obsessive about getting the fit just right on my own nappies.