That's an interesting idea. In general I try and steer clear of anything clearplay-zy for (perhaps unbiased) legal fears but it might work.
On person that wrote me once that said "so basically you'll be crowd-sourcing the work that clearplay does internally, to locate the bad parts of movies" which may be...accurate. I don't know. If there is some converter or other created it would probably have to be used as a plugin or something--I could come up with a plugin framework without too much trouble...that might have potential. If you want some other language than ruby it could just call out to an executable I suppose...
https://gist.github.com/52f5c6386fc67e9e6b6b was one fella's work at an "auto-converter" across various EDL formats.
Unfortunately I haven't actually really solidified on the EDL format yet...it's all prototype-y but I'm guessing that mplayer EDL format is pretty standard, or you could use mine. I'll add it to the todo list to be able to use "straight" edl files.
The reality is that sensible cinema's only "real" contribution would be the EDL library it contains. EDL *support* per-se is "almost" simple and already readily available (slicing and dicing videos using an EDL...maybe not so much though...mencoder works but seemed buggy at times, so I guess it also has that function).
The good news most recently is that for some movies you don't *need* a previously existing EDL to watch it edited. You can download subtitles as a file, and use them to parse out profanity, and you might be good to go. For those with violence or sex scenes though I guess it would need some extra help, obviously...hopefully the "community" would contribute so the rest of us don't have to :) (I once had been hoping to seed the EDL library by employing someone to do it but now I'm thinking I will just let it grow naturally/rely on the profanity finder--after all, I've had a whopping 1 EDL already contributed to me! The rest are all hand-created.)