I agree, some people are in need of some kind of stimulation or the occasional "now that you mention it" type of question. I do not think that the two approaches (with and without guidelines) are mutually exclusive.
Can you point me to any good studies comparing the outcomes of both approaches? I am somewhat obsessed with mathematics and therefore highly interested.
Let's say 20000 people mail in suggestions to the president of x. Two of them mention that their most important concern is that the flowers next to the parking lot in their village should be blue ones. Biased sample or not, the chances of extremely infrequent complaints being actually among the most important ones in the nation are next to 0. Biased or not, noise and signal can be identified.
If I were Larian I would use it as the base for a survey taking more personal circumstances into consideration.
I guess the point of this thread is that people have invested a lot of time into feedback and they are waiting for Larian to acknowledge their awareness of some of the issues mentioned.