Given the amount of material on the site now, I have previously asked questions about curating content better so it is more accessible. So this is an idea that may not work, but is designed to think about how we display the best of the site to new users and make the best content more accessible.
The tentative idea would be to have a "model question" tag - sadly this would only likely work if able to be used by more experienced site members. But if such a thing were to exist it would be awarded, for example, in respect of subjects that are regularly duplicated, to questions that are well posed and explained, and have an appropriate range of good answers which explore the mathematics in the question at the various levels of sophistication at which it might be asked.
I think the "tone" of the site has got rather sharper and more critical over the last three years, and that barriers to entry may be higher than previously. That has been the subject of much debate and a reasonably settled policy has emerged. This is one attempt to think about how the site might be made more accessible. It may not work as a suggestion, but I hope to prompt other better suggestions by making this one.