Simply my favourite editor. I've written a ton of code using it exclusively - syntax highlighting in all the major languages. Why use an IDE?
Why invent new editors all the time. There are two (and the rivalry takes on epic proportions) Emacs or Vi (Vim) Emacs is the most advanced you will ever see and Vi is the original since early 70-s
It does not come with tag highlight activated as sublime text does. You have to google for a module, for the way to install it an to activate it.
Recently became my favourite plain text editor. Doesn't look as sleek at Leafpad but is really useful for programming, CSS editing and similar.