Julie, in the comments a couple of posts down the page, said:
I’ve gotten emails from people who’ve checked out the wiki and think it’s a neat idea, though none of them are playing. Yet? I hope so.
I think one reason that The Poetry Wiki didn’t take off in its previous incarnation is that, psychologically, it’s quite intimidating. It’s not quite like anything you’d normally do with poetry, and it’s hard to know how to approach it or where to start. Are you rewriting the poem drastically? Tweaking it? Trying to respect the original intention? Bouncing off it in some other way? Cutting? Adding?
Julie’s idea of posting one of Spenser’s poems as a starting point gets rid of one psychological block, because you don’t have to worry about how the original writer will react.
I might post a similarly unthreatening piece to play with later, although the best thing to do would just be to dive in and edit.