Didn't read through the whole thread, but will add some suggestions:
1. Some posts are very long. For example, a post about a Starwood card can have information about the SPG program, how to use those points to get to Israel etc, and all the benefits of owning an Amex card. This is great information, but it should be collapsed by default on the home page. The visitor can click on the article for more information, or they can "expand" it. The problem with having all the information expanded by default is that if a visitor wishes to scroll through recent deals, it becomes a tedious task.
2. To make things even simpler, perhaps line up the deals in a grid like SD. That way a visitor can see at a glance all of the most recent deals.
3. Price mistakes and "hot, sizzling and hurry" deals should always be stickied to the top of the page, and should be noticeable. (perhaps a flashing light like Drudge?) This is ultimately a business decision, but it should always be above everything, even advertisements.
4. Although it doesn't make a difference to me personally, pictures definitely enhance the deal. A picture represents what you are buying, and can definitely lead to more sales and referrals.
5. From a design perspective, keep things black on white. Shades of blue and beige are a bit stale.