At it's most extreme point, it can be parodied to something like "You have no right to complain about a problem in your privileged life because people are starving in $COUNTRY"
In all it's forms, it's a sort of ridicule directed towards people trying to make their lives better. I believe people have the right to complain about, and try to improve, any and every element of their lives- right down to asking for better/healthier free lunches from their employers.
Working for ethics in video game journalism and to reduce nasty sex related comments towards women stands to reform a genuinely nasty cesspool in modern society