Pitching media and bloggers, especially if you don’t have an existing relationship, can be intimidating. You have something that may be relevant for them. You don’t want to interrupt or bother them. And you certainly don’t want to do something in your approach that turns them off to you completely.
Knowing as much as you can about the person in question helps. You can snoop on their social networks, see what they’ve written about recently and perhaps even comment and engage with them lightly before you pitch – all good ideas. But until you get them to respond or pick up the phone, the one thing you don’t know is their true personality.