text: Some people don't understand the question, or they think it should have gotten a different answer.  Sometimes they may have had a different answer, or they provided a little extra info and they're annoyed that their answer wasn't selected as "best."\n\nIn some cases, they may have meant to click somewhere else and just happened to click the thumbs-down.  I don't think it's worth getting excited about.\n\nedit...\n\nI looked further in your questions and I found a couple of quotes that had mixed "up" and "down" votes -- I think the people voting thumbs down were just playing around, with no logical reason to disagree with the answer.