[johnny22]

Because it'd be really nice to have a place with just application data to backup. no configs, no application state. Or alternatively it's nice to have a place to just factory reset all your app config, but keep all the data.

[Aerroon]

But would you trust that you would actually get all the app's configs? Ie window position and all that.

And would you trust that you would only affect that one application and not any others?

And wouldn't you just unusual and reinstall the application anyway?