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From: Matt Whitlock <bip@mattwhitlock.name>
To: Tom Harding <tomh@thinlink.com>
Date: Thu, 09 Jul 2015 22:00:45 -0400
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Cc: bitcoin-dev@lists.linuxfoundation.org
Subject: Re: [bitcoin-dev] Can we penalize peers who relay rejected
	replacement txs?
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On Thursday, 9 July 2015, at 6:57 pm, Tom Harding wrote:
> Replace-by-anything can only work if conflicts are relayed, so the
> solution is not to act against the peer.
> 
> Alex Morcos offered a suggestion on IRC -- track recently-rejected
> txid's and don't getdata them.  The idea sounds good to me.

While that's probably a good idea, it wouldn't do much to reduce the load. I am not seeing many repeated transaction hashes among the "rejected replacement" messages in my log.