Its still here. Just in different locations! Its been split into the specific areas it needs to cover.
If you look at the top of each park forum, you will see the travel planning sections above the thread for each resort. For instance, if you click on the Disneyland forum, at the top are the sections for So Cal restaurant reviews, So Cal Hotel reviews and So Cal Travel Planning.
Same for the WDW resort forum. At the top of that is Orlando restaurant reviews, Orlando Hotel reviews and Orlando travel planning, etc....
Yep, I smushed them all up into the Parks sections that they pertain to. Should be easier to find what you are lookig for and helps keep the front page from getting to long. It's all still there, but in different spots.