I don't see any real reason why the nuts should not be re-used technically, it's not like a yield fastener.
The only issue might be if the new stake point comes very close to the old point, in which case you could try swapping sides, the chances of the thread starting in exactly the same point so the stake point being in the same place on both sides is slim.
(I'd just add that I did have issues once with that ebay supplier in the post above, haven't used them since.)