Comment: If someone doesn't care for an opinion nor the manner in which it's posed, the reaction is no better nor worse, and the wise resist expressing it. If someone chooses to be insulted by a letter deemed unworthy of consideration, that logically shouldn't matter, either. If memory serves, that's the Zen-like counsel a young relative provided you one day. Apparently, the struggle to practice it continues.
What does matter is that opinions, even the prickly, find the light of day with as little resistance as possible. If wishing to have access to any and all viewpoints regardless of their content is, indeed, silly, so be it.