If 90% ask for refunds (which I expect it to be), why not just refund all batches to the original senders bitcoin address instead of monkeying around for dozens of hours trying to process everyone's individual needs? The odds are 1 batch will be stuck with a small group of trolls/afks not caring about a refund at all.
Good point. It's almost certain that batch one will get "stuck" as you say with die-hards and people that just don't care.
It's been stated that no one will be forced to take a refund. It would be nice to see it explicitly stated that one one will be denied a refund either.