Yeah, the column started out that way, and we're still very happy to take on amateur projects. Though of course we reserve the right to suggest that you go back and try to re-record certain sections if the salvage job looks too daunting
The Mix Rescue column is now a mix of those sort of projects, and of more straight-forward mix jobs (those written by Neil Rogers generally fall into the latter category). The reason we added those is that we felt that the column had been giving the impression that you *should* be doing all of this corrective stuff in the mix stage, whereas in reality, on commercial projects many such problems would have been avoided further upstream, at the recording/programming/arranging stage. It's great that plug-ins can help you problem-solve such things, but we wanted also to give an impression of what mixing *should* be about when those first parts go as they should in the first place!
I'm also keen to add a few remix features under this guise — where someone does something like a dance remix of a rock or pop tune and writes up their approach, so candidates for that are welcome too. Just be clear about that when you write in.