Just spit balling here. For those of us who have been members for a good number of years, most (if not all of us) have duplicates, near dupes and technically poor images made with primitive cameras that we would never upload today. Most of these clunker images haven't received a zoom even one time, let alone a sale. (just speaking for myself now). Yet we cling to them in the hope that one day, the sun will shine upon their under-exposed face.
Given the vast numbers of images available through Alamy, would it make sense if we would be asked to cull out our losers, say 5% every year for 5 years, or some such formula? Wouldn't a cleaner, better catalogue benefit all of us? Just a thought. I know....me first.