Following this train of thought:

Pretty soon you run into the problem that even if Alice and Bob each have a list of “trolls,” they may not have the same understanding of what constitutes a “troll.” Which makes it hard to merge lists by different people, if all you have is a list title without a definition.

Which is why I added DIP-03 to the basic principles of dcosl: every list needs to have a cryptographic identifier so you can have multiple fields, like a definition, in addition to the list name. That way Alice and Bob can maintain separate lists with the same list name, troll, but separate definitions of troll. Then Charlie can decide he likes one definition over the other, and adopt that list.