When Google changes your Meta Description to something showing on your page instead

Selected answers from the Dumb SEO Questions Facebook & G+ community.

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  Alan Bleiweiss: Evaluate whether your Meta description is the best wording to help let people doing a search understand that your page is a strong match to their search intent. Does it come across when you read it, to be a motivator that "this is the page I want" Or "This is a site that will fulfill my needs" ? Understand that people may be using a wide range of phrases wher that one page may come up until the search results. So the Meta description needs to not be too narrow for the full purpose of the page existing. Consider what other sites that rank higher, use for theirs.
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  Michael Martinez: Honestly, I only write meta descriptions when someone pays me to. Otherwise I just make sure the page contains the descriptive text for various types of queries. Google wants your whole page to be a pool of meta descriptions. I have been pointing that out to Web marketers for years. Meta descriptions are optional for both Website owners and search engines.
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  David Kutcher: Google is trying to tell you something.... you might want to listen.