It's helpful for your mental health to not take anecdotal "salary reports" on HN seriously. Whenever salary comes up, everyone here knows someone whose brother's roommate pinky-swear definitely makes $400K at Facebook, therefore this must be "normal salary" there. I've worked for a number of companies talked about here and have never even made close to the "HN Quoted Average Salary." Voluntary online salary boasts from random people are going to tend to bias high. You're probably doing fine.