A lot of people are too lazy to do their own DD, therefore they latch on to someone they believe is an authority. This is okay if you check out more than one "authority" so you can make your own judgement.
Cramer is just for show. Anyone making investments based on his comments only are not very smart. I would like to have some of the money I lost based on his "comments". By the time he changes direction, it's too late for most of us.