If buyer don't renew his subscription I'll hide files in download session (and unhide if is renew). Of course the file that the seller has sent you will still be usable.
I added there rules because I get a lot of requests, and most files I do not validate them (I waste a lot of time). I hope that now that the sellers are obliged to pay they will propose files of better qualities and that will keep them updated to not lose money. And now, when a seller is not active, these files will be removed of the download session.