They are real traders. I have met in a forum a german provider as well. I can understand why you were surprised.
Yes they are, and if you comment on their trades you see their replies. I have read a conversation where the signal provider was asked why he did not use stop on a specific trade. The follower pushed him to use one. The signal provider tried to explain through examples that he has the control of his trades and that there is no reason for worries.