It's a reference to a scene from the Stephen Chow film Hail the Judge when a nosy townsperson says, "I came in with the townspeople to see what the fuss was about. But now I'm a bit too close to the action ...." The "townspeople" are a motley crew who make a mountain out of every molehill and love to give their opinions.
「鄉民」一詞出自周星馳電影《九品芝麻官》裡的一句台詞：「我是跟鄉民進來看熱鬧的，只是往前站了一點… …」，意指凡事喜歡小題大作、好發議論的烏合之眾。