I think it would be a good idea for anyone who marks a question as "too broad" have to give a small comment or explanation behind it. This would lead to better editing and higher quality questions instead of just locking a question out of being answered altogether. It's quite discouraging to have a question marked on hold when I myself think the question would have received good answers. What do you all think?
I disagree that this is necessary. The banner contains all the information and links you require:
Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
That link to the help center is not the help homepage - it is to a specific section about closed questions where more detail is avilable
too broad - if your question could be answered by an entire book, or has many valid answers (but no way to determine which - if any - are correct), then it is probably too broad for our format
Any comments made when voting to close as too broad would simply duplicate that information in varying and opinionated ways.