I’d much prefer for the Diadem NM achievement to be merged with Eureka (I believe there was some talk about this before, maybe? but I’ve never heard of anything concrete other than comments from others), because I would really like the “Notorious Monster Slayer” title, but Diadem is deader than a doornail... Or have another section of NM achievements for Eureka with titles.

NMs and Hunt marks aren’t really synonymous, so I don’t think it’s fair for NM kills to be granted towards, say S-Rank or A-Rank kills.