Before sending them any floppies, one should always contact them to make sure that they are indeed still active and accepting disks and not just follow some instruction from a website that hasn't been updated in a while. I don't know if people already did that when they submitted these floppies, but if they have been told directly that they could send them disks and that they would be returned, then obviously one could expect that within some reasonable time frame. To ask the submitter to pay for the return shipment is also acceptable since these guys are doing this work without any pay.
Of course, real life can get in the way by means of new job situations, sickness, etc., but if they are still alive and able to use a keyboard, then at some point it would be nice to just write to people how the situation is so they don't just leave people in the dark.
