I see.

But is it really necessary to soft fork over this issue? Why not just make it a relay rule? Miners are already incentivized to modify transactions to drop excess witness data and/or prioritize (versions of) transactions based on their cost. If a miner wants to mine a block with excess witness data, it is mostly their own loss.

On Tue, Aug 16, 2016 at 6:39 PM, Pieter Wuille <pieter.wuille@gmail.com> wrote:

On Aug 17, 2016 00:36, "Russell O'Connor" <roconnor@blockstream.io> wrote:

> Can I already do something similar with replace by fee, or are there limits on that?

BIP125 and mempool eviction both require the replacing transaction to have higher fee, to compensate for the cost of relaying the replaced transaction(s).

--
Pieter