OK, but i'm still interested how people feel about their work being used by others...
Unless I missed something, the only place where photos could have been downloaded was the Media Gallerys, and I have turned that off now. Is that what you were referring too, or did miss what you were saying?
With the Media Gallery it was an oversight on my part because I would not want anyone to download someone elses photo. As mentioned by Kyle, there isn't much someone could do with someones downloaded photo when they are web sized, and plus, there is truly no way to stop it. Whether it's right clicking an image and selecting download, or its using a screen capture to capture an image. It's really difficult to prevent, but definitely I don't want a Download Button available in the Media Gallery, and that's now gone.
To Ben's point, definitely some kind of download capability for the Critique forum would be interesting. Currently there is no way to download in any of the forums. Ben's point is an interesting one that I will have to explore more later.