What I'm trying to do is slightly different. A guide will tell about everything that there is to do. So does wading through the forums at Trip Advisor.
I'm trying to present itineraries that have already selected interesting things to do. Essentially future travelers are going to benefit from past travelers.
What's often important is: How much can I fit in a day? How do I get around? What was my personal experience, and how can other travelers benefit from it?
In a near future, you'll be able to search on itinerary based on your travel profile (age group, kids/no kids, fast, lazy etc.)