From the previous discussion PandoDaily is a ValleyWag-type gossip site. If someone was writing about your own personal relationships, would you ever think you "might be justified" in doing the same?
In other words, they both serve their own brand of red meat to their audiences.
Forget apples to oranges. What you're describing is (possibly rotten) apples to hand grenades. But since you asked, no, I wouldn't dream of behaving this way. If a reporter published something demonstrably false, I'd demand a correction. If the pattern persisted, I'd take them to court. You know, like a civilized human being, not some goddamned Mafioso or a member of the KGB.