Must be! I would think that the larger the gallery grows, the harder it will be to weild that axe. **Prepares herself for the "Where did my image go?!?!" posts**
We will eventually get around to clean it out, but it is not something that you can expect a group of people to do by hand. I plan on using a semi-automated system to decide which images to remove, however I don't have the time right now to program it. They aren't really causing a problem for the site right now anyway.
"The whole problem with the world is that fools and fanatics are always so certain of themselves, but wiser people so full of doubts." Bertrand Russell
Many axes would help, but sharpening each one takes a while. The first 5 pages on the Author List might be a good compromise, but if you throw that on them, many will probably either commit scuicide or move to Nebraska.
Sometimes I wish I knew which ones would and wouldn't get into the permenant galleries.. then I could save some people the trouble of deleting them ^.^