When I used paraffin, I had to re-lube every 200-400 miles even without the chain getting wet.

1,200 miles is so high, I wonder what the difference is.
(1) Fifty-plus rider has lost high-frequency hearing, and can't hear the chain squeaking.
(2) High-quality stainless chain is so well made it doesn't squeak after lube is lost.
(3) Different paraffin lasts longer.
(4) Preliminary cleaning left enough chain lube to keep chain from squeaking.