Nice point. I didn’t consider the mud aspect. This is probably the most convincing thing I’ve heard since we started this thread. All you had to do was say “mud” 3 days ago and this thread would have been over by now. 
As far as them paying for it goes though, they did once. But now don’t costs go up as storage becomes more scarce in order to entice new storage to come online due a bunch of data nobody wants? Would it not be more efficient and less expensive in general if unwanted data was deleted, since there would be a more efficient utilization of the current storage resource. But mud is valuable, and the abandonment criteria is infeasible. So…
Have you guys considering paying a small credit back to individuals who voluntarily delete data they don’t really care for anymore? Perhaps the economics of it could work out so that everyone is happier for it. It is now human “composters” who actually own the data that decide to free up some storage and get rewarded, rather than a network decision. Perhaps the credit back is slightly less than what they paid to upload the data in order to add a little entropy. Perhaps you are kind and do the exchange 1:1. This frees up space in the short term and leads to reduced costs for others… etc… ?