Why did they take the scream out of the theme music in Buffy?

The iconic scream in the theme music of "Buffy the Vampire Slayer" was removed primarily due to licensing issues and changes in the show's production. Initially, the scream was part of the song "Buffy Theme" by Nerf Herder, but as the series evolved, the producers sought to streamline the opening credits, leading to its removal. This decision also aimed to create a more consistent audio experience for viewers.