I don't know about others, by as my library grows, if I ever wanted to revisit a clip (perhaps to tweak, or grab elements from for a newer clip, etc.), it's becoming increasingly more difficult to find older clips.
That's why I started to add numbers to the end of my titles, so I can easily refer back to the "master" clip and assets in my local library. I have a chronological number system for my filenames. I don't label my original clips like, "guy on beach.mov" or the like. All my clips are given a unique number, so I'm guaranteed not to have duplicate names. And it keeps my local library in a nice, chronological order.
Also, it'd be helpful in the submission form if the original filename was at the top of the page. I realize it's in the "title" field until you change it, but having it up top would be helpful sometimes, too, since I copy-and-paste the META data from an external document. If I get distracted during the submission, I sometimes forget what clip I'm adding the keywords too...especially if a few clips in a sequence are similar in nature.
Some sites keep the original filenames (and that's helpful), others totally disregard them (which can be problematic).
Thoughts by others producers?