Doing something similar for a non-public project. How do you deal with remixing feeds, and the potential mix of formats (rss, atom, etc)? I need to create new feeds as well, and if its done by normalizing, sanitizing content, etc. I feel I misrepresent the original content, and probably breach the implicit license granted by syndicating via feed.

Probably very few creators care one way or another, as the links are going to the original content. Just interested if people had an opinion on the matter.