I've always been confused by this. I use Jetbrains (IDEA, Rubymine and PyCharm) products almost exclusively and I have no idea why a developer would "refuse" to

I've always been confused by this. I use Jetbrains (IDEA, Rubymine and PyCharm) products almost exclusively and I have no idea why a developer would "refuse" to use an IDE. I admit that if I just need to review a single file or knock an R script together I will launch Sublime. This is almost exclusively as a result of launch time ... nothing more. Good IDEs tend to get out of your way - whilst offering you advanced visualisation, debugging and reporting for when you, ... you know ... have to work with other people.