[amttc]

For me, at least, it's not so much a "raw LOC output" thing as it is a comfort thing. When I go back to IDEs or text editors that aren't Emacs, even though I can be productive there are lots of movements and tricks that I miss. It's less time spent text editing and more time spent looking, reading, and thinking.

Rarely, I'll be in a situation where I have to do a series of complex edits. At my old job if we were crunching, some of the people that were junior to me would look over my shoulder and see me rushing through a ton of different files to make them. I think if you're familiar with a tool/setup it's easy to do this, but it's not totally necessary.