Time spent on Playlist!

I am noticing a trend here. I get approved for several playlists but I am removed or not even added by the time the e-mail shows up. The rotation on some of these playlists a week or less. I think they are just farming users to get paid by quantity. I would like to see an average up time for what users can expect. I know it’s not up to DailyPlaylists to decide but it’s not encouraging.