> I could say I'm surprised to see how many people don't know anything about the browser rendering pipeline and consequently produce badly performing interfaces

> I could say I'm surprised to see how many people don't know anything about the browser rendering pipeline and consequently produce badly performing interfaces. I mean, if you're supposed to be a senior front-end dev then that wouldn't be an unreasonable expectation. Meanwhile there's plenty of senior back-end developers out there working on SQL-backed applications who don't know SQL and refuse to learn it.