[Bitcoin-development] Proposed BIP 70 extension

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> On Jun 24, 2014, at 16:12, Gavin Andresen <gavinandresen at gmail.com> wrote:
> 
> It would be silly to add a "generic stuff" field inside a container format that ALREADY has all the mechanisms necessary for forwards and backwards extensibility.

I agree. It would be even sillier to start specifying container formats for random one-off "that would be kind of nice, I guess" features. 

How about exchange rate? Sharing links? Referral information? Any of these things are just as deserving of specification (and just as arbitrary). 
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