It's a complicated balance act. You want to hold "your" party accountable, and the scale is not "better than the others". At the same time, you don't want to diminish the difference, by just talking about your side's problems. A "we publish everything we get" policy is then not necessarily balanced, if one party plays this game, and the other doesn't.
How do you know that wikileaks is trustworthy? Answer please.
If we are talking about the 2016 election then there is actually data on how much dirt was being thrown around. Looking at all the scandals being printed in news papers, with the big ones being the email scandals for Clinton and audio tapes for trump, the data as presented in a research paper was that the intensity of scandal articles was higher for Trump, but the duration of articles was higher for Clinton. Trump scandals got focused in the news during the last month of the election, while the Clinton scandals had been published on and off for almost a half year. In total, articles writing about scandals was around 3-4 times more in total for Clinton and distributed over a half year, than those of trump which was distributed over the last month of the election.
The general conclusion I got from that research is that dirt that can be dripped over a long period has a better chance to stick than a louder but shorter lived dirt. It also makes comparing one kind of dirt to an other difficult. This lesson seems to have been taken in by heart in the Snowden leaks and panamaleaks, both which stretched out their leaks for months.
If there were equal amounts of dirt on every politician, then fine, but there is clearly not. This is what bothers me about the whole thing. It can be manipulated by powerful states, and some of them are more willing to use it than others.