Here's the million dollar question. Why do you care what other people do? Are they stopping you from playing the game? Is SE paying you to tell other players to have more respect? Didn't think so. SE doesn't care about what a very, very, very, very, very small percent of people are being rude about because they are still getting money from the rude/disrespectful complaining players. Which is all that matters.

People are going to do simply whatever they want/can and it's no amount of threads you can do to stop them.