People that stacked Notepad++
It's my go-to editor for plain text and quick code edits. Add the TextFX plugin and you'll have a very powerful tool to manipulate and format text! When it comes to previewing or contributing to bigger projects, try Visual Studio Code
My preferred text editor for Windows. I don't code a ton, so I keep it very bare bones for composing prose. Occasionally, though, I need to mess with some HTML or CSS, so it's nice that it can handle that. Also, text editors without RegEx search can Get Bent.