I have no reason whatsoever to doubt wikileaks. If the emails show signs of forgery but so far they haven't, too much information that would only be available through a leak and everything connects with what we know and with each other, so tampered emails is unlikely. DNC certainly thinks they are real, which is why they're losing their **** over them.
Calling Assange a pedo is a transparent tactic to scare low-info people from the leaks, because "OMG RUSSIANS" and "IT'S WAREZ" wasn't working. If you're going to pretend otherwise you're beyond hope.