I actually wonder about this too. At my previous job, nobody was using IntelliJ despite developing in Scala and Java. The code base was complex, not using an ID

I actually wonder about this too. At my previous job, nobody was using IntelliJ despite developing in Scala and Java. The code base was complex, not using an IDE had a noticeable effect on the kind of code people were writing. The code was much less cohesive, and looked more like a series of scripts than well architected.