Bad, Bad Yahoo Messenger

I'm using Yahoo Messenger for IM at my current contract. It gets to send out quick messages to folks and works well. Our Exchange servers are 2/3 a continent away and email can sometimes take 5+ minutes to be sent. This morning when I logged in I was prompted by Yahoo to update it. Not a problem. the new version has a smaller footprint and the upgrade went smoothly. But they violated a couple cardinal laws, at least in the eyes of many people. They automatically changed my default browsers homepage to their own. And they added the Yahoo toolbar. I can understand doing this if my settings were that I was already using them. But I wasn't. I associate actions like this with seedy types. You know the websites that you stumble across when you mistype a URL; the ones that ask or even attempt without asking to change your homepage. Is this a sign of how desperate Yahoo is for our business?