I don't know if anyone has already given this suggestion..

You know how when you submit one of your scans and in order to download the scans you need papers? What if the person that submitted the scan gets papers depending on how many people downloaded their scan? For example, if one of my scans were 30 papers and two people downloaded it, I would get 60 papers.

Dunno if this would be a good idea or not but it might make people post more scans and help other get more papers.

The answer to this will be no. The system in place currently works to make sure that people give a continued contribution to the site to continue receiving benefits. The system you propose negates this aim.

Sounds too complicated, tbh.