Surely I'm not alone in wanting YouTube playlist subscriptions?

I recently discovered "After Hours", a Cracked series that analyses tropes/media. I've now watched every episode and I'm eager for more, but I won't subscribe to Cracked.

My subscription "stream" is reserved for content I'll always watch. Cracked, in general, doesn't fit, but After Hours does. Let me subscribe to the playlist and I'm a guaranteed "view". Force me to remember and I will forget; it's happened before!

Both "Freeman's Mind" (Machinima) and "Zero Punctuation" (TheEscapist) are awesome series I forgot about and stopped watching. Playlist subscriptions would have prevented that.