Could we come to a consensus, and could we then make the tags synonyms of each other?
As Robert noted in comments, synonymisation isn't an issue because typing
poe into the tag box will lead users to poetry automatically anyway.
For discussion of the value of this tag, see Is [poetry] too broad / how should we use the tag? and my own more recent A proposal for [poetry] and [short-stories].
(I'm mainly posting this so that the question can have an accepted answer and not keep on getting bumped by Community.)
Just to reiterate the consensus that has already been arrived to in chat, we should only use [poetry]. That discussion occurred here.