My only concern is that the people who need to hear it most probably have too much wiggle-room to avoid actually internalizing the advice. Like, "both sides" aren't equally culpable in the fights you've been in on this stack: pretty clearly, it's been mostly people being unreasonable/not listening towards you, whereas you've been trying to respect their arguments and be kind.
But a lot of the people responding to you are not operating under the mindset that they're being rude/unreasonable/whatever, but instead under the mindset of "well, this is just how people argue on the internet, what …