Some programs require tab characters to work, e.g. make requires tabs in Makefiles. If gedit is configured to replace tabs with spaces, it's painful to change the settings every time or copy a character from another document.
I'm using 3.10.4 on Ubuntu 15.04.


Also, if gedit has automatic indentation enabled this should be done once per block, as subsequent lines will inherit TAB as indentation symbol(s).
– dess Oct 03 '21 at 10:11