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[–]jstolfi 0ポイント1ポイント  (0子コメント)

Yup. But any miner or group of miners could force a fee increase also by simply refusing to process any transaction with less than some fee F, and announcing it. That would mean that transactions paying less than F would have a longer expected time to confirmation. Depending on the hashpower that the miner or cartel controls, and on how many users would rather pay F than suffer the longer wait, the manoeuver can be profitable for the miner doing that, and also for all other miners. (I posted the math not long ago, but I cannot find it now...)