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Your point about using btc and 110, versus the awful mess I made in the OP is accurate. I was trying to avoid antagonizing anyone by labeling one side or the other as the "true btc" side

Fair. I am not trying to antagonize either, if the bip manages to win, it'll become BTC, i suppose. Can't really call BTC something that is not yet deployed.

"Wipeout" in this context means orphan. As in the 110 chain is valid as far as the btc nodes see, and therefore if it ever accumulated enough PoW, the btc side of the split would be orphaned and all nodes would see the 110 chain as heaviest valid chain.

I see... this gives them the same chances as anyone trying to rollback the chain, so it all boils down to thinking there are stronger arguments for B110 that eg. CZ that time asking to "pls rollback the hack", that is IMO true, but not even close to be enough to have that confidence in the outcome.