No strong opinions but: Denial of service attacks can become 5x cheaper.
If you don't thoroughly test https://github.com/bitcoin/bitcoin/issues/16499 these changes you can end up with bugs that can cause issues on p2p network. On Fri, Aug 21, 2020 at 4:00 AM Dan Bryant via bitcoin-dev < bitcoin-dev@lists.linuxfoundation.org> wrote: > It's been 5 years since minrealytxfee was lowered. At the time > bitcoin was trading for $255 and it was agreed that the fee of 5000 > sat/vkB was too high. It was lowered to 1000 sat/vkB. In regards to > how much anti-DoS protection that provided, it comes out to $0.00255 / > vkB in USD terms. To have parity with the last reduction, we would > need to reduce minrealytxfee to 22 sat/vKB, though an even more > conservative reduction to 100 or 50 sat/vKB would be welcome. > > With the growing adoption of LN, there is a need for ultra-low-fee > on-chain TXNs. Having these queue and confirm overnight, or even > waiting until the Sunday lull would still probably be welcome to many > users. The fact that the mempool is going empty at least every week > indicates that miners have not reached the floor of what they are > willing to mine. > > About 2 years ago there was a PR (#13922) to try to make a reduction > from 1000 to 200 sat/vkB. It was widely accepted but the submitter > eventually closed it in favor of PR #13990. > > If minrelaytxfee is already parameterized and configurable in > bitcoin.conf, how could it be detrimental to operation of a node to > change the default? > > References: > > * > https://github.com/bitcoin/bitcoin/commit/9e93640be6c49fa1505ba5c5df8c89210da5a6e4 > * https://github.com/bitcoin/bitcoin/pull/13922 > * https://github.com/bitcoin/bitcoin/pull/13990 > _______________________________________________ > bitcoin-dev mailing list > bitcoin-dev@lists.linuxfoundation.org > https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev >
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