I think this is another false dichotomy. It's quite possible to efficiently limit the damage someone can cause to a project without resorting to verbal abuse.
Most simply, refuse to merge their stuff unless it has quality. You don't have to hold their hand; say: "You are making the same mistakes over and over again. Your stuff isn't going to get merged, and we're not going to spend any time explaining to you why."
Most simply, refuse to merge their stuff unless it has quality. You don't have to hold their hand; say: "You are making the same mistakes over and over again. Your stuff isn't going to get merged, and we're not going to spend any time explaining to you why."