On Mon, Dec 17, 2018 at 3:16 PM Johnson Lau <jl2012@xbt.hk> wrote:

I proposed the same in BIP114. I wish Satoshi had designed that way.

Thanks. I probably read that and internalized it and forgot you wrote it.

But I’m not sure if that would do more harm than good. For example, people might lose money by copying an existing script template. But they might also lose money in the same way as CHECKMULTISIG is disabled. So I’m not sure.

Another related thing I’d like to bikeshed is to pop the stack after OP_CLTV and OP_CSV. The same pros and cons apply.

This one is almost a no-brainer I think. Nearly every instance of OP_CSV is followed by an OP_DROP and we'd save 1 WU per OP_CSV if we pop the stack afterwards.