I already posted approximately fifty questions on Stack Overflow. Some were useful for me, but are completely useless to Stack Overflow members and do not bring new users to the website. I can put as example a question or another one where I asked something by mistake. Since there are few chances that somebody will do the same mistake, the question has no reason to survive.
Is it a good idea for every user to "clean" his/her profile by removing questions which prove to be useless to other Stack Overflow members?
What will happen to the reputation of an author of an accepted answer? Of course, removing an answered question is not a solution if it decreases the reputation of people who took their time to answer.