They said I was obscure but I don't know the word..

[milo]

Footnotes are added by editors and publishers /after/ a poem is edited and published and preferably after a poet is dead and her works in the public domain. Eliot's publishers convinced him to add footnotes to the book version of The Wasteland to fill up enough space for them to charge full book price and he begrudgingly* complied.

*It seems it he complied with the letter of the request but filled many of the footnotes with bogus information.