Central to law (at least to private law, i.e. contracts, real property) is the binary of action. Every (trans)action implies an actor and an acted upon. Every offer implicates an offeror and an offeree; every lease a lessor and a lessee.

Cringe at the inelegance, and I do, but it works to differentiate between the subtleties of action, reaction and consequence that make up the details of legal analysis.

What about the transaction between writer and reader? Writers have no writees; they have ideal readers, which are fictions. Readers don't have readees; they read the text, not the person beyond the text.

Writer and reader are necessarily separate; no action binds them together. Transaction takes place between writer and text, and between reader and text.

The law charts relationships between actors in transactions. Poetry charts relationships that lead only to itself.