Repetitive answers . . .

I'm new to this email list . . . But is it customary to answer a question after it's already been adequately answered? Not trying to step on any toes. I just think if I were asking the question, it would be unpleasant to continue receiving answers, especially the same answer, after receiving one that is prompt, accurate, precise, concise, and adequate. Likewise, if I had answered the question -- promptly, accurately, precisely, concisely, adequately -- I would find it equally, if not more, unpleasant to see my answer displaced, or buried, by a wash of similar answers. Of course, it's always good to confirm things. But can't the absence of objection serve as confirmation? Does anybody feel the same way? NOTE: There could be lag caused by network and server technologies. Perhaps answers arrive during the time it takes a person to prepare an answer. These are forgivable.