I was one of those guys, but it was Emacs. Quite frankly, IDEs at the time were really bad. They were slow and clunky. Intellisense didn't always work. People

I was one of those guys, but it was Emacs. Quite frankly, IDEs at the time were really bad. They were slow and clunky. Intellisense didn't always work. People who relied too much on IDEs didn't understand their project's build process and couldn't debug it. The code templating stuff spit out awful code. I kept using Emacs for a long time because I was more productive with it. I had a lot of customizations and add-ons that made it a dream to browse the codebase and churn out good code. I finally switched to VSCode some time after it was open sourced because the plugins for my languages had gotten really good, and emacs development felt like it had slowed down and everything was starting to get bitrotten.