From your link
From the Wiki link you posted
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RTFM [and] "Go look on google" are two inappropriate responses to a question. If you don't know the answer or don't wish to help, please say nothing instead of brushing off someone's question. Politely showing someone how you searched or obtained the answer to a question is acceptable, even encouraged.
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If you wish to remind a user to use search tools or other resources when they have asked a question you feel is basic or common, please be very polite. Any replies for help that contain language disrespectful towards the user asking the question, i.e. "STFU" or "RTFM" are unacceptable and will not be tolerated.
?Ubuntu Forums
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Hmm. Of course, you could have just replied "Read the F'ing Manual".