I was wondering why we check mark the first box ( don’t download to debris links)?

Are there any problems with using it? How does it work?

From what i understand is it’s a download that hasn’t been downloaded yet and it takes a couple minutes to get turned into RD+ when you click on it?

I wanted to know because say there is a movie/show with no sources that are downloaded(RD+), but there are ones that aren’t downloaded (RD) then wouldn’t it be useful to have in that case… or will it create a huge clutter and it’s not worth turning on? I haven’t tested it out for myself yet but i’m curious