I'm pretty sure 99% of them would try to scam you out of your Bitcoins
Don't worry, my coins are splitted and
confirmed on BIP-110 chain, so nothing will be replayed.
no replay protection
Their new rules are enough to reach replay protection. First, you can use for example P2PK on a non-BIP-110 chain. Then, you can see it confirmed in 10 minutes. Then, you can send a transaction on BIP-110 chain. And then, you have splitted coins.
nearly stalled chain are just inviting scammers to take advantage
Of course. I treat it more like a testnet, or even warnet, where some edge cases can be tested. For example: imagine that Bitcoin will be heavily censored for whatever reason: can you, as a user, get your message confirmed, or not, in that kind of circumstances? I guess BIP-110 chain can give us some clues, how users would behave in a hostile environment, where developers want to constantly block you from transacting. And now, they kinda succeeded, because the chain stops all of the spam through a huge Proof of Work filter.