Hmm...I thought it was just hands and non-garden items they didn't want in photos. I agree with Critter, most of the butterfly pictures I take obscure the plant so I would never post them to the plant database. But if you're taking a picture of the entire plant and there happens to be a butterfly on it, then that just shows it's a butterfly attractor. Or if you're taking a flower shot and there's a bee or something on there, I don't see the big deal unless the bee is comprising most of the photo. I have added pictures of plant leaves with butterfly eggs on them because you can still see the leaf, and it shows people what the eggs look like in case they don't want to remove them or want to know what to look for.
Beverly, I remember that photo. I liked it!
I had to remind Jim over on the butterfly thread that hands were fine for photos in our thread. It's just the plant database they keep to those standards, as far as I know. It's really hard to photograph caterpillars or newly eclosed butterflies without using your hands sometimes! And I've still seen database photos with people's hands because sometimes you need something in the background to make the camera focus on a tiny flower. And don't get me started on windy days!