Thanks all, and thanks for your comments RPC. I think it is important to address your thoughts.
As for the duplicates that sjarelkwint uploaded, that could be explained by the fact that the tool doesn't remove photos you uploaded from the listbox. You could easily press submit again and upload a duplicate! Oops. Tonight I will add the absolutely necessary feature that the tool removes items that were successfully uploaded so that this can't happen. So I'd file that under "kinks to be worked out" but I realize it doesn't address the full scope of concerns you raise.
(Also, sjarelkwint, I hope you'll take a look at your photos and address that problem? It is unfortunate that because you are the very first user, you need to set an example for the rest of us!
The remaining concern, that people will "dump" poor quality photos here, is harder to answer. Your notion that "it's not a great idea to have this tool in the hands of the vast majority of SP members" is interesting, and provides the start of some ideas. I do fundamentally disagree with this idea, I think it is more likely to be a minority of people who make the poor choices that annoy us, I think we need to discuss some solutions that allow most of us to be happy. I certainly don't want to either reduce the quality of photo submissions on Summitpost, nor do I want to create hours of tedious drudge work for Elves!
I don't know if this would work at all, I am just brainstorming, but does it make sense to try to define what is a "good"
user? And limit usage of the tool to such users? Someone would have to add some lines of code to perform the authorization step on the server. My tool would co-operate by making it easy to identify the UserAgent of course.
A good user is one that an Elf says is a good user
A good user has power X
A good user is one who attaches photos to Mountain, Area, Route or Trip Report pages (I say that just because I've seen lots of forum threads decrying too many non-mountain related Albums and such)
I think we can solve those things, making life easier for all of us Summitpost fans, but also protecting us from mis-use. I am preferring to look on the "cup is half full" side.
(ps, I just thought of one more thing. Borrowing from some other folks who already mentioned this idea, I think it might be good to limit the size of uploads by auto-resizing the images. That will help storage space on the servers and also prevent (as of yet still imaginary) people from deciding to archive their full memory cards up here as a sort of backup location. That makes things clear: you are uploading a copy of your image here because it is worth sharing. And that is all.)