She's putting on a very fake "cute" voice to attract betas (and their bucks). It's a common tactic among female psychopaths. They know that talking like a baby will cause particularly stupid men to dote on and fawn over them because if triggers a paternal response.

You'll notice a few other markers of psychopathy here. The intentional, unnatural head tilt designed to make her look cuter. The fact that she never, even for a second, breaks eye contact with the camera, despite the fact that she's walking. Her strangely emotionless upper face despite her ostensibly talking about something that she cares deeply about. That practiced smirk that looks like it came straight out of a Pixar movie.

This woman is a master manipulator and this Twitter dweeb is exactly the kind of fly her web is designed to catch. He's probably already going into debt for her.