Haha BLS everything of course. I can’t even imagine how you could do it only for the PoK. Any equivalence proof between curves will be a PoK so there’d be no point in the BLS in the first place.

I like “purecoin”. Although I also think it’s not a great direction. It’d still make way more sense than bip444. It would be interesting to present a possible if not realistic soft fork that actually would significantly reduce the amount of data embedding that could be achieved per vbyte. Then a rational debate could be had.

Point taken about locktimes. I don’t think anyone would be in favour of disabling lightning. You’d probably have to leave the spammers with that one.