I never really got upset about Wikileaks providing commentary, because I never had the illusion that they were going to be impartial. Don't be lazy, apply some critical thinking, listen to different sources. Leaks are in their nature untrustworthy. Even intelligence agencies with all their highly educated analysts get things wrong.
Finally if you stop supporting Wikileaks because you don't like that they provide commentary, editorialize, make propaganda or whatever your view are of it. I don't really think you get what their doing or what's at stake.