Slow speeds that you can leave on can still work faster then Rapidshare timelimits. I am okay with waiting a day or two for a torrent instead of multiple days trying to time RS correctly for 60+ files. I've kept the files seeded too. The audience for fan edits is small enough I didn't notice huge leechers (would stablize further after release).
I don't see how it does harm as an option on top of RS. There are fan edits that I would like to see but the only option is RS.
Or openly get the community behind a private tracker for anyone willing to seed. These private sites always rub me the wrong way.