(Proverbs 12:5 KJV) The thoughts of the righteous are right: but the counsels of the wicked are deceit.
Notice the contrast in actions. You have two classes of people, the “righteous” (6662) and the “wicked” (7563). The righteous would have opinions that are worth sharing. They are based on wisdom and truth. They are offered in honesty. They remain thoughts.
On the other hand the evil are very quick to offer their advice. Since they are evil their advice will be “deceit” (4820). They might even be giving good advice but they are not offering it to make your life better, it is to benefit them.
So? We are encouraged to seek the input of others. The thing that is important to remember is to keep in mind the character of the person offering the advice. The man selling you the car is not the best one to ask about the condition of the car if you know him to lie about other things. Use common, “Christian” sense.