Yep, feedback should be mandatory
It is the best way of sharing knowledge when others in the same predicament come along as we often see the same questions asked over and over again and I'm sure those before have either found an answer, or if not it would just be useful to let us know it is an un-answered one.
Now and again the answers are really useful and are made into guides or go in the FAQ section - anything to help make 350/370 ownership a greater pleasure is always welcome