"clears" up some things. Meg was great to have, Samuel's character gets some sense...
Season 4 really kickstarted the torture porn obsession of this show. What need is there to have that Meg scene, disgusting really, the boys never get tortured like that...
Also what the hell happened to demon blood Sam. He was brought from the dead before and that didn't cleanse him. I just got to thinking because soulless Sam would have probably drank the demon blood to go after crowley