WordAi version 1.1 introduced the ability to also spin the title of your imported posts.
To do so, it’s as simple as navigating to your WordAi settings, from RSS Aggregator > Settings > WordAi, and ticking the Spin Title checkbox.
Once enabled, your future imported posts will have their title spun.
Note: Your current posts will not have their title spun. You will have to re-import them.