I actually really like seeing multiple pictures of the same plant. It reassures me that the picture actually IS of the plant listed. If I see 8 people have submitted pictures of a plant, and the blooms look very similar in all of them, I know they were correctly labeled. I also appreciate seeing how they look in different zones and areas, and different seasons. I think the thumbs-up feature will help the best pictures "rise to the top" so to speak, so no harm done in having many others submitted as well.
