Recently a lot of questions was out of the hook, most of it comes from new users that may be not familiar with rules and how to ask proper question "there was a lot of posts here on how to ask a question but I think no one follow it How To Ask Good Questions On Technical And Scientific Forums
How to Use Biostars, Part-I: Questions, Answers, Comments and Replies".
I think this could be overcome by implementing script that search in biostars db before posting the question and give suggestion to user that his question was asked before and he needs to have a look.
Also before accepting the question you could remind the user of the
rules to ask and post a question
- In the registration step you could ask the user to read about rules and how to ask a question and you give him small multiple choice to make sure he read it "something like coursera"
- last and I do not support, to give moderator the right to downvote