With negative votes you get a completely different result. The best way to understand this is to use an example. Imagine there are several dishes to choose from. One of the participants is allergic to one of the dishes. Then he can rate the dish as negative as possible. In a small team, this dish would probably already be sidelined.
If the team would vote the same question with positive votes, this dish could be the best dish (by points), although there are other dishes that everyone likes (or tolerates).
With the negative votes the result is not the dish that gets the most points because it tastes the best for a few teammates; but it is the dish that everyone likes to eat. In large teams, of course, a single negative vote can also perish, but the principle is the same. The result therefore has the highest group acceptance.
You can find more information in our tutorial about systemic consensus.