Re: [bitcoin-dev] [Mempool spam] Should we as developers reject non-standard Taproot transactions from full nodes?

From: Erik Aronesty <erik@q32•com>
To: Ali Sherief <ali@notatether•com>,
	 Bitcoin Protocol Discussion
	<bitcoin-dev@lists•linuxfoundation.org>
Subject: Re: [bitcoin-dev] [Mempool spam] Should we as developers reject non-standard Taproot transactions from full nodes?
Date: Mon, 8 May 2023 08:58:28 -0400	[thread overview]
Message-ID: <CAJowKgJaG8ZnZMuVTSmyhMxZKb4pcMF1XM+WH8j64Gasoy1kcw@mail.gmail.com> (raw)
In-Reply-To: <Lm_5F74G9G21ydrFPovvmtHWpNXcbVzZibmU80oNqFRehJjcll89-t7OXqS5Fooe0cTNxGreIREMql3Li2xUCe2T5NVyss3-CrLzISO09HY=@notatether.com>

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probably easier just to reject any transaction where the fee is higher than
the sum of the outputs

On Mon, May 8, 2023, 7:55 AM Ali Sherief via bitcoin-dev <
bitcoin-dev@lists•linuxfoundation.org> wrote:

> Hi guys,
>
> I think everyone on this list knows what has happened to the Bitcoin
> mempool during the past 96 hours. Due to side projects such as BRC-20
> having such a high volume, real bitcoin transactions are being priced out
> and that is what is causing the massive congestion that has arguable not
> been seen since December 2017. I do not count the March 2021 congestion
> because that was only with 1-5sat/vbyte.
>
> Such justifiably worthless ("worthless" is not even my word - that's how
> its creator described them[1]) tokens threaten the smooth and normal use of
> the Bitcoin network as a peer-to-pear digital currency, as it was intended
> to be used as.
>
> If the volume does not die down over the next few weeks, should we take an
> action? The bitcoin network is a triumvirate of developers, miners, and
> users. Considering that miners are largely the entities at fault for
> allowing the system to be abused like this, the harmony of Bitcoin
> transactions is being disrupted right now. Although this community has a
> strong history of not putting its fingers into pies unless absolutely
> necessary - an example being during the block size wars and Segwit - should
> similar action be taken now, in the form of i) BIPs and/or ii) commits into
> the Bitcoin Core codebase, to curtail the loophole in BIP 342 (which
> defines the validation rules for Taproot scripts) which has allowed these
> unintended consequences?
>
> An alternative would be to enforce this "censorship" at the node level and
> introduce a run-time option to instantly prune all non-standard Taproot
> transactions. This will be easier to implement, but won't hit the road
> until minimum next release.
>
> I know that some people will have their criticisms about this,
> absolutists/libertarians/maximum-freedom advocates, which is fine, but we
> need to find a solution for this that fits everyone's common ground. We
> indirectly allowed this to happen, which previously wasn't possible before.
> So we also have a responsibility to do something to ensure that this kind
> of congestion can never happen again using Taproot.
>
> -Ali
>
> ---
>
> [1]:
> https://www.coindesk.com/consensus-magazine/2023/05/05/pump-the-brcs-the-promise-and-peril-of-bitcoin-backed-tokens/
> <https://www.coindesk.com/consensus-magazine/2023/05/05/pump-the-brcs-the-promise-and-peril-of-bitcoin-backed-tokens/?outputType=amp>
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