If someone is 30 years old today, then that would mean they would have been watching anime released between 2003 and 2008. We're talking Fullmetal Alchemist, Samurai Champloo, Code Geass, Gurren Lagann, and Soul Eater.

For someone to have been alive for Slayers to be a part of their formative years, they'd have to have been born between 1983 and 1988. They'd be 42-47 years old today. Anyone younger than that claiming they "grew up" with Slayers is lying their ass off.