I misread TFA and thought the calculator was based off of jobs posted in the site, not their own salary calculation. Judging by their comprehensive operation

I misread TFA and thought the calculator was based off of jobs posted in the site, not their own salary calculation. Judging by their comprehensive operations articles (DC migration, etc), it appears their ops staff are also software engineers. In that case, it appears they've misinterpreted the market. At least SREs know they should apply to Stack Overflow only for software engineering roles in order to avoid a $10k penalty for extra skills.