I have noticed on a few questions recently that several of us have hopped on to quickly answer a simple question. We end up with several answers appearing in rapid succession that often have basically the same answer. What do people think about submitting a placeholder answer like [I'm actively writing up an answer now] to indicate that others may not need to bother?
An example: someone asked the other day about how to sort some data in R, and three of us had extremely similar answers post within a couple minutes of each other. Afterwards, we all just voted up the best explained version, and one answer's author commented that he wouldn't have posted his answer if he had seen that someone else was working on it. I felt the same way. There are names that I have learned to recognize in the R tag, and I don't feel the need to answer a straightforward question if one of those people are already writing something up.