HN commenters do this all the time, though. They'll take, say, an "L6 Google + Bay Area + Top End + Most Favorable Stock Market" compensation number, and then say "Most tech employees make this much."
Because like L3 is 200k so I'm not sure if you're seeing people post 600k as a reference point or 200k.
Metropolitan areas with the highest employment level in Software Developers
Metropolitan area Employment Employment Location Hourly Annual
per 1000 jobs quotient mean wage mean wage
New York-Newark-Jersey City,... 119,010 12.53 1.15 $ 73.12 $ 152,100
San Jose-Sunnyvale-Santa Clara, CA 96,590 84.60 7.75 $ 96.06 $ 199,800
San Francisco-Oakland-Hayward, CA 83,920 34.65 3.18 $ 87.13 $ 181,220