Comment by brailsafe

> Imagine an alien culture encountering the word. Blacklist versus Denylist.

Seems like it's just another step in developing one's language skills, no more or less ambiguous than "deny" for someone who doesn't know either word, but I'd wager than "black" would probably be encountered earlier in the vocab training list. It's a bit of a stretch, imo. "Reject" or "Turn-away" or "Block" works too, as well as many others, language is flexible, it doesn't seem names for lists are worth so much energy.