That might work with the average Joe or the guy in his basement, but a public figure might, knowing that he vastly out powers you in terms of law expertise, follow through. So too a company. That is, if they actually have any basis for it. You can not be sued for opinions, but you need to make it clear that they are opinions, and you can not be sued for saying the truth. If you blatantly defame someone however, again the average Joe might not want to go through the hassle as he would have to pay lawyers, but some other person would have no reason to hesitate. So if you defame someone, just offer them to amend it, if however they are making threats without any base at all, then yeah sure stick with your rule.