A spell checker is pretty useless. It’s not a word processor. I just want to very quickly open a text file and perhaps make a small edit. I would usually use it for config files.

Syntax highlighting for xml, JSON, yaml and CSV would be a much more useful feature. gEdit on gnome really nails the lightweight but useable text editor.

Also, would it kill them to use a rolling buffer instead of loading and rendering an entire 500MB file before rendering the first 30 lines on screen?