Make comment more correct

Looked at this yesterday and realized that I wanted to rewrite this
comment for some reason. Unsure why not, but c'est la vie.
specs fail for message passing

Simplest interface possible. I think I'm basically going to end up
copying and pasting code out from IRC broker for a few things, but
that's probably a good thing? Should be easier to test drive now
that Cedar is integrated + works instead of backfilling tests
which is kind of what I'm doing now.