Internet trash is my biggest source of stress. As everyone knows you can find something on the internet to support or oppose any product, cause, viewpoint, whatever. I get really angry when people searching the internet will only use the information that supports their preconceived idea and ignore anything that is to the contrary. The stress is elevated when they try to convince me about something and they refuse to accept other viewpoints and get angry when I suggest we check the source of that information.
I guess it goes back to my days as a newspaper reporter. Often I had to deal with people who would bring a printed article that somehow omitted the citations or sources of the information and then expect me to write a column about it. Right along with the bad internet trash are the conspiracy theories. JFK has been dead for almost 50 years. Lincoln has been dead for 160 years. None of the theories are ever going to be proved, so just let it go.