Source Box search is unusable -- it constantly refreshes results
Whenever I try to search the Source Box for anything, the search never completes. It'll show a page of results, then remove those for about three seconds, then flash them again, and the process repeats. This is regardless of the search and regardless of whether any of the additional filters are used.
It's probably important to note that after eight years here, I have 140,000+ items in my Source Box and no easy way to clean that out.