Matt:
I did not know that. As you can see I'm rather new but I should have done my homework better :)
In dealing with ad sponsored themes I have to say I am against the idea because I should be able to maintain control of the content on my own site.
Blogging is a social exercise. We all post our thoughts, fears, hopes and a myriad other ideas so therefore our blog sites are an extension of our own identities and personalities. We need to have control over how we choose to represent ourselves because we are really talking about personal expression.
If I choose to put a link on my site to the company that makes my rock climbing equipment I should be allowed to do that, but what if the people who make a sponsored theme are also part of a company that makes rock climbing equipment for a company that I feel makes an unsafe product? Would that link cause people to say "Hey, Dan links to this other company that makes climbing gear and since he is a rock climber then he must feel they make good equipment." Since I feel that company makes a poor product and someone then buys it and is badly injured because of it, could I be held responsible somehow?
Now I know that's a pretty extreme example but we all know what kind of world we live in and someone might be able to find a way to take legal action against me. We could all then be forced to put link disclaimers on our site to protect us from other frivolous lawsuits.