I see these statements often on forums (rhetoric or not) and am always curious what motivates the speaker to leave the confines of his (rarely a her) otherwise busy day to NOT answer the question, but yet criticize its asking!
I always answer:
1) Some people like or need to be spoon-fed information and concurrently some people get gratification and are well heeled at researching and reporting the information.
2) Technical topics tend to get out-dated with time, so reviewing them with a new question (and response) gets an up-to-date answer; and
3) Posting on forums helps answer the question for others, too. One person's looking up his own answer, helps no one else!
But at the end of the day, there is always someone like @UncleYoda who has a need to raise that inquiry and I am happy to fulfill that need with MY answer!