"Don’t be overly righteous" (7:16). Is the Preacher saying not to be too good?

The verse says, "Don’t be overly righteous, neither make yourself overly wise. Why should you destroy yourself?" (7:16). The next verse is its pair: "Don’t be too wicked, neither be foolish. Why should you die before your time?" (7:17). In Hebrew overly in "Don’t be overly righteous" (7:16) and too in "Don’t be too wicked" (7:17) are the same word, harbeh, and each verse ends with a question that opens why. (The overly of "neither make yourself overly wise" (7:16) is another word, yoter; tap excellent.) The two warnings come right after what the Preacher says he saw: "there is a righteous man who perishes in his righteousness, and there is a wicked man who lives long in his evildoing" (7:15). After them he says, "It is good that you should take hold of this. Yes, also don’t withdraw your hand from that; for he who fears God will come out of them all" (7:18) (tap fears). The verses don't say what being overly righteous looks like, or how much is too wicked, and these notes don't say either or apply the words to anyone today. What the passage names is "he who fears God" (7:18), the fear the book comes back to at its close: "Fear God and keep his commandments" (12:13).