You can lead people to a computer, but you can't make them think

I just have to throw this story out there. I recently spoke with a parent about a small incident that happened with her child at school, and what steps I took to redirect the situation. The parent seemed fine with the conversation, but later posted on social media the story, commenting that she thought the situation was funny. Numerous people who never met me proceeded to insult and attack me. This situation was brought to my attention by a co-worker, who was greatly upset by it. Years ago, I probably would have had the same reaction, but with age comes acceptance of the fact that some people feel the need to insult others, stir up trouble, and generally be a nasty influence. You can't fix them, you can't change them, and it isn't worth the time or aggravation to argue with them. The best you can do is ignore them and continue to do what you know is right.
These have been today's words of wisdom.......