To: bitcoin-dev@lists.linuxfoundation.org
From: Andreas Schildbach <andreas@schildbach.de>
Date: Fri, 29 Sep 2017 14:45:32 +0200
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References: <20170927160654.GA12492@savin.petertodd.org>
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Subject: Re: [bitcoin-dev] Address expiration times should be added to
	BIP-173
Precedence: list

On 09/29/2017 11:55 AM, Peter Todd via bitcoin-dev wrote:

>>> I'm well aware. As the payment protocol hasn't caught on - and doesn't fully
>>> overlap all the usecases that addresses do anyway - I think we should consider
>>> bringing this important feature to Bitcoin addresses too.
>>
>> Hasn't caught on? It is used for virtually all merchant transactions,
>> plus person to person transactions between Bitcoin Wallet users.
> 
> "Virtually all"?
> 
> I regularly pay with Bitcoin, and I haven't seen the payment protocol used in
> ages.

I regularly pay with Bitcoin, and I haven't seen the payment protocol
not being in use in ages.

> Can you name some users of it?

15+ Mio Coinbase users
~10 Mio BitPay users
8 Mio Bitcoin Wallet users
Plus Bitcoin Core, Electrum, etc (sorry no numbers)

Probably the only usecase for naked addresses is paper wallets, right?
I'm not sure if paper wallets can expire.