I also see a way to do timing attacks with this, lol
We'd need to make sure that the fee can't change while your reply is in flight.
Just sending the fee that you're willing to pay with your reply might be enough already.
We should probably do this in general, too!
24 sats \ 0 replies \ @satgoob 11h
Speaking of timing, maybe you can change a fee once a day (no clue the cadence). Also, what about deleting comments on your item once per day / week
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