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

[Tom Harding <tomh@thinlink.com>]

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> And prevent perfectly reasonable transfers of value


Such a transfer can only be reasonable when off-chain value is attached 
to the coins.  A rule like this is the embodiment of the philosophy that 
the Bitcoin network is for onchain-economic transactions.

Parties could get around the rule by paying miners off-network, and that 
would be an appropriate penalty for using non-onchain-economic transactions.



On 5/8/23 10:13, Michael Folkson via bitcoin-dev wrote:
> > probably easier just to reject any transaction where the fee is 
> higher than the sum of the outputs
>
> And prevent perfectly reasonable transfers of value and attempted 
> Lightning channel closes during fee spikes? If I *want*​ to close my 
> Lightning channel during a protracted fee spike where I have to pay an 
> onchain transaction fee greater than the amount I am receiving you 
> want to stop me doing that? You are impinging on a valid use case as 
> well as requiring a consensus rule change.
>
> -- Michael Folkson
> Email: michaelfolkson at protonmail.com <http://protonmail.com/>
> GPG: A2CF5D71603C92010659818D2A75D601B23FEE0F
> Learn about Bitcoin: https://www.youtube.com/@portofbitcoin
>
> ------- Original Message -------
> On Monday, May 8th, 2023 at 13:58, Erik Aronesty via bitcoin-dev 
> <bitcoin-dev@lists.linuxfoundation.org> wrote:
>
>> 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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>>
>
>
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