I guess there's a happy medium somewhere. But here on FT and elsewhere I often see people posting unrealistic trip plans. 5 countries in 4 days. Spending all of their time going to and from airports. Or planning to visit places that aren't easy to get to as if it's just across the street. Or they are going halfway around the world for a weekend. (Which I have done but don't necessarily recommend) So a reality check can be worthwhile. And if you ask for opinions on your plans, don't be surprised to get them.
I always admit up-front that my style is more that I'd rather spend a day too long in a place than always be on the run. And I like to plan a little buffer in case the weather really sucks for a day or two or I get sick.