It would be nice if you could add plain text in a dimension. For example between (asda sada) after the value. This text is than visible in the sketch. NOT as a parameter but just add plain text to the value.
This way you can clarify why a dimension has a certain value which can give yourself and other who open the sketch the information why some values are chosen.
Pleas also have a look at SolidWorks on this matter, they have this possibility.