It would be very useful to separate the playlists you have created for yourself from the ones that you follow, possibly by having separate tabs or sections. Me personally, I listen to my own most often but I will follow ones that target a specific genre for certain moods or to find new music. This can get very cluttered, especially on the desktop application. The mobile application fixes this by having your recently played playlists at the top, however on desktop you would have to re-arrange your playlists in order to find an older one. I have a lot of playlists because I use spotify daily, and I think it would be a useful feature for some of your very active users.
I realize that a similar idea was proposed a while back but it is inactive and I wanted to suggest it again.
Hey @jag21 thanks for bringing your idea to us. Right now we don't have plans for separating your personal playlists from the ones that you follow. One way you could do this today is by making playlist folders for your personal ones and ones you follow. If this status changes we'll let you know right away. Thanks!