Previous actions aside, when is it ever a good idea to argue with internet trolls in _any_ comment section as a CEO? Especially when it involves executive level

Previous actions aside, when is it ever a good idea to argue with internet trolls in _any_ comment section as a CEO? Especially when it involves executive level disputes? What could you possibly gain that would be a net gain from commenting here? Aren't you concerned about customer and investor blow back from you simply commenting outside of a legal letter seeking a peaceful resolution?