Placeholder text comes in handy when you’re creating design mockups. You don't have to make up the content, and placeholder text uses variable length words and sentences to mimic our standard writing patterns. But inserting placeholder text always required an extra step, until now. New in Illustrator CC 2017, anytime you create a new type object, Illustrator will automatically fill it with placeholder text.
You do have to set the preference for this, as not everyone will enjoy this new feature. Choose Illustrator > Preferences > Type (Edit > Preferences > Type in Windows), select the Fill New Type Objects With Placeholder Text check box, and click OK. Now any time you add a new type object, Illustrator will automatically fill it with placeholder type!