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Date: Mon, 10 Aug 2015 15:06:51 +0200
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From: =?UTF-8?B?Sm9yZ2UgVGltw7Nu?= <jtimon@jtimon.cc>
To: Mike Hearn <hearn@vinumeris.com>
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Cc: Bitcoin Dev <bitcoin-dev@lists.linuxfoundation.org>
Subject: Re: [bitcoin-dev] Alternative chain support for payment protocol
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On Mon, Aug 10, 2015 at 2:53 PM, Mike Hearn <hearn@vinumeris.com> wrote:
> We're not modifying BIP 70, it's now immutable and can only be extended.

Well, yes, I guess it's modifying that in the extension BIP.

> There's really not much point in having a dedicated chain ID for regtest
> mode. You shouldn't be finding BIP70 requests for regtest outside of your
> own developer machine, where the id doesn't matter.

The point is not having exceptions and treating all supported chains
in the same way in the code.
Having a special case for regtest makes the code more complex, not simpler.