Rejecter - one tiny defense here --last week at Backspace tghe agents told us the LIKED when we hired an editor because implied that the MS might be cleaner than if we hadn't, meaning less work for YOU. And also, they liked that we had invested our own moolah in our work. I know nothing of which editor or the quality of the work presented -- just sharing some info that was bandied about last week in NY. Perhaps the writer was at Backspace? Was YOUR boss there?????
My boss was not there, but many reputable agents were from the looks of the webpage. I can only guess what they were referring to in terms of editors, but I would assume they mean reputable editors and no people like Edit Ink. I suggest you ask on Kristin Nelson's blog, as she was at the conference.
EDIT: There was a change and she was not present. Don't bother her about the conference.