I've seen this sort of thing happen multiple times. We get a lot of questions that ask 'How do I do something that is built into the language?'
For example, How to divide array into small arrays?
Then we have a bunch of users see it as a really quick answer, find the man page, post it, we get about four answers in 30 seconds, then these answers get up-voted by people who agree (because they're right), and run along, and everyone without an up-vote deletes their post.
I feel like these questions don't really add anything, and it leads to a higher ranking for contributing very simple answers to a simple question, to a greater degree than more complex questions with more complex and more dedicated answers that show some thought.
I mean, the upvotes are nice and all, I've received some points questions like this too. But I don't feel like its more worth-while than my other answers with less up-votes and more thought.
So to summarize: We have really simple questions getting lots of the exact same answer in a span of less than five minutes, all the answers say RTFM with hyperlinks.
Here's the question: Is this a problem for the community? If it is, we can think about ways to solve it, if not, we can carry on.