When moving between content management systems, it will always be a big change. It's not something that can be eased into. And we're aware that this is a big change for users who are used to a certain look. This is why we teased what was coming months in advance, showed screenshots of the forums etc.
With that said, just because it's different doesn't make it bad. I've been catering to user requests as much as I can, where they make sense. But being able to see 20 listings on a page doesn't mean it's more user friendly than seeing 5. All you need to do is scroll to see more, it shouldn't be seen as any kind of hinder on usability.
The way websites are developed (any of the good ones), is by following design trends and keeping up to date with the advances of websites. Facebook, Twitter; they're two of the most successful sites and both revolve around a heavy scroll-based interface. Because of this, it is logical that other sites follow aspects of these, as vast majority of people are now used to that kind of approach. Some may not be, but we can't keep catering to people who are used to older, 90s style layouts.
My best suggestion is to give it time. It may feel like you've lost a friend, but what you're feeling is mostly the natural reaction to changes.
In the mid-2000s we underwent a huge redesign of Dropzone.com and the reactions were the same. The site that you and many people grew to love, was initially pushed against by the community, for the same reasons. With time, they forgot about the old design and came to enjoy the new one. But when it first came out, the same complaints were seen. So give it a few months, and see how you feel after that... I can assure you that you will feel a lot less like you're in a unusual environment than you do now.