Originally Posted by
TLR
I have already explained it in previous posts, if the medium reveals his knowledge as it gets it, or the villager announces who he is looking up, then it makes the wolves job easier, since the wolves cannot allow too many confirmed villagers to be alive, if they know who is confirmed they will just eat him, and the angel cannot protect him since he has to protect the medium. The medium needs to keep his info to himself until he feels he has enough important info and it is the correct timing to reveal it.
Having the medium outed protects him from random killing by the wolves but he is dead once the angel is discovered. Since the chances of the wolves to randomly hit the angel are similar to those of randomly hitting the medium there is not much benefit. The avdantage is that the medium is protected from viligante shots, but I think that it is not worth it to the risk of losing both specials if the angel is discovered