What modern-day journalist working for anything resembling a respectable newspaper has published the credit card numbers, home addresses, and private phone numbers of their subjects?
Snowden didn't state specifics, but the scandal around Wikileaks release of the DNC emails has generally focused on two things - the possibility it came from Russia (nothing to do with Wikileaks themselves or editing, so unlikely to have been Snowden's concern), and that it included private information about individual - often blameless - people that could cause them serious harm without having anything to do with holding them to account.
Everyone, to the best of my knowledge, is on board with the idea of Wikileaks leaking an email that says "Hi, DWS here! I need a list of ways in which we can secretly handicap Sander's campaign, but remember guys, technically this is illegal so mum's the word!". Fuck DWS. If she goes to prison over this, then nobody's shedding any tears beyond a few die hard Clinton worshipers.
What we're not on board with is "Oh, Jeff Atl called to donate $100 to the general election fund. Could you handle it? His credit card number is 4111 0291 3839 1212, expires 06/17, CVV 971. Address if you need it is 9821 SE Sunflower Rd, Trenton Gardens, NJ 19281." Even if the full email continues "I let him know that with his donation comes a 30 minute meeting with the Secretary of the Environment so he can deal with that little problem his factory is having with the inspectors", we'd at least expect the credit card details and street part of the address redacted.