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I am new to Stack Exchange. Math and physics newsletters get to my inbox every Thursday, and every Thursday there are 5-day-old answers to questions as I read them for the first time. Too often a question of interest has already been closed because of the low quality of recent answers and comments. I have no reputation, and to do almost anything requires more reputation than I have. Nothing I have found in Help helps (however I noted one user submitted an "answer" because he said he did not have the reputation to comment. I have started wondering if Joseph Heller is looking over my shoulder. Any help, please?
Thank you to those who made useful suggestions. The question, "How does a new user begin using Stack Overflow/Stack Exchange?," clearly expressed my difficulties. I would close the question if I knew how. Good night.