Solution to what exactly though?
That there are numerous questions from people that go unanswered? Stats won't resolve or help this unfortunately, at least not in any way that would be noticeable or felt, and runs a risk of causing other issues in general.
Do you think you might be assuming it's a lack of motivation or desire on the part of people who want to help? That perhaps they need some additional incentive to motivate them to help? I have not seen evidence for this to be the case, if anything it's the opposite, as in there tends to be less of a motivation for people to take on proper learning practices, or ask questions in the correct areas, or formulate the question in a way that doesn't require private tutorship, doing a dive into the person's project, or watch some long-winded video because they were "following a tutorial on youtube" so that way the person can understand which of the 100's of ways anything and everything can be done, that the tutorial told them to do (hopefully correctly).
We acknowledge there are many questions answered, and many questions that aren't answered.
The questions that do get answered are one's in which a person who knows the answer, sees the understandable (comprehendible) question and has the time to spare to answer it.
So if the goal is to get more questions answered, then the goal is to simply better match up people who have a specific question (the more narrow the question the better of course) with people who know the specific answer to said question. The majority of questions that do go unanswered are sadly the easiest but extremely broad questions, but they would require repeating the same thing 100's of times a day in order to answer each of them.
The new bots (soon to be introduced) will aid in this, as they will have a growing and community driven FAQ command that will answer most of the generic questions, and will grow to be more and more specific and niche with it's questions and answers.
We're also taking a look at how the channels are segmented, organized, and handled in general so that when someone with the knowledge to answer a question, can more easily find those with questions that they can properly answer.
These are but only 2 of the several things being worked on at the moment to help and continue to aid in the growth and usefulness of this community.
Unreal Slackers is not a replacement for proper learning material, is not a replacement for the official forums, it's not a replacement for UDN, it's not a replacement for tutorship and private education. It is however a powerful tool within the arsenal of Unreal developers and designers to utilize as a supplementary source of knowledge, wisdom, and expertise.