I learned vi a long time ago and use it when no other editor is at hand. In fact, I am using several editors simultaneously, depending on the task at hand and what is availabe. I stumbled over dte because I like to try out new things. And because dte hits many sweet spots for me, I installed it on machines where I often need a terminal editor. Binding myself to only one tool just because I learned to use it at some point in time is not my philosophy. Thankfully, the open source world offers so many alternatives and innovations, so that there is something for almost all tastes and habits. It comes with no costs besides building muscle memory to switch as needed and wanted.