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Date: Fri, 16 Apr 2021 15:55:47 +0000
From: Andrew Poelstra <apoelstra@wpsoftware.net>
To: Christopher Gilliard <christopher.gilliard@gmail.com>,
 Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org>
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Subject: Re: [bitcoin-dev] BIP - limiting OP_RETURN / HF
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On Fri, Apr 16, 2021 at 03:34:33PM +0000, Christopher Gilliard via bitcoin-dev wrote:
> This sounds like a good justification to remove the legacy multi-signature
> capabilities as well.
>

Doing so would confiscate coins, and also it is impossible to remove
legacy multisignatures in general without gutting almost all of Script.
 
> >> Thus, given that it is otherwise impossible to stop people from putting
> arbitrary data values into their transactions, then we rather encourage
> people who are going to encode their arbitrary data in transaction to use
> the OP_RETURN outputs in order to avoid UTXO bloat.
> 
> You can't make it completely impossible to do that, but you can make it
> harder and at the same time you can provide a solution for doing what they
> want to do.
>

I don't think you can even make it harder in a meaningful sense. There is
too much flexibility in transaction data.
 
-- 
Andrew Poelstra
Director of Research, Blockstream
Email: apoelstra at wpsoftware.net
Web:   https://www.wpsoftware.net/andrew

The sun is always shining in space
    -Justin Lewis-Webster