I do believe that we teach people how to treat us because I was raised to be a doormat and used to let people run me down all of the time until I finally got to a point where I'd had enough of it and started saying what was really on my mind and acting out some of my insanity.
Now people who know me usually think before they say things to me that may come across as disrespectful and those who talk down to me or get testy are inviting me to ask them why they said that to me and/or why they said it that way?
I have a guy in here who will not hesitate to tell a bully that they are speaking to me/us disrespectfully and that we do not appreciate it one bit.
As for social media it is chock full of drama and people who like stirring it up.
I had to get firm on my primary Facebook page over making it very clear that I am at liberty to post whatever I damn well please there as it is my page and not theirs. Because some didn't see it that way and continued to cause problems I had to make changes to my account and make a very serious post about how anything like that further would not be tolerated.
Also, when posting links about anything potentially upsetting to sensitive people it is a good idea to point out where the link came from so, nobody assumes that you typed it up yourself.