As far as I know, many low-rating users like question setting. Their dream is to give codeforces a question. Their idea is also very good. However, codeforces restricts the question setter to be above blue (this year it is increased to orange). Maybe div3 can be opened to all users, so that each user may become the problem setter? There is a problem here. If you do this, it will be a huge challenge to the review mechanism. Maybe codeforces can select a group of trusted users (such as previous authors, users with orange names and above), vote for each question in the div3 question bank, and select some of the highest votes for review at regular intervals? I think this can improve the frequency of div3 and the quality of the questions, and also allow more low-rating users to participate in the question-making process?