Subject: Re: [bitcoin-dev] Regarding setting a lower minrelaytxfee

From: Peter Todd <[email-masked]>
Date: Tue, 26 Jul 2022 16:27:56 +0200

On July 26, 2022 2:19:32 PM GMT+02:00, alicexbt via bitcoin-dev <[email-masked]> wrote:
>Hi Aaradhya,
>
>> As it's not a consensus rule, I think it can be done easily, just needing support from full node operators
>
>A few miners will need to use a lower minrelaytxfee for this to work. I don't think miners would want to lower their profits.

Whether or not this lowers profits for a particular miner is complex:

https://petertodd.org/2016/block-publication-incentives-for-miners

But to a first approximation, at any fee above zero failing to mine a tx you know about is leaving money on the table.

Anyway even if miners don't actually mine these txs by themselves, with Child-Pays-For-Parent, allowing near-zero txs into your mempool potentially allows you to mine more fees.