[wenbin]

Dropbox and Evernote could've been perfect finished software in 2012.

"Finished software" doesn't mean that developers will spend 0 time on it.

"Finished software" is in the sense of no major user-facing changes (i.e., new product features, experimental features...). To ensure "finished software" continues to run in the coming years or even decades, developers may need to keep up with operating environment changes (e.g., OS, hardware...) & continue to upgrade infra software / libraries for bug/security fixes & performance improvements.

Imagine that a tech company lays off all software engineers except for a few devops.

[8n4vidtmkvmk]

Would probably be a smart move for a lot of companies. If it's profitable it's profitable. Milk it for as much as possible by cutting costs, not adding useless features.