Gedit is the official text editor for Gnome and it's available wherever any version of Gnome is installed. With thousands of people using it daily and not even realizing it.
Plugins allow for added functionality and customization
There are tons of plugins for productivity available in many different workflows, such as a dictation plugin, an encryption add-on, a whitespace remover, and more.
Supports app menu bar when enforced to by the desktop environment
If the desktop environment prefers the app menu bar ("File, Edit etc...) instead of showing everything in the title bar Gedit will respect this. It's one of few Gnome apps that works great with Vala Global Appmenu.
For example, finding anything in the settings menu is hard. Most other text editors use Edit->Preferences for managing settings but this is not the case for Gedit.