Since a player has recently 'lost' a guardian spawner due to him mining it without knowing he has to request for a manager to move it for you, I'm suggesting adding some sort of warning before breaking it. Maybe it can also be applied to other spawners that can be changed using an egg spawn like parrots and horses too? So people won't lose guardian spawners for nothing. To clear it up, the warning might pop up on chat or on the screen itself (preferably) once the player attempts to break it which doesn't allow him to do so in the first try but can allow him in the second try if they want to lose it lmao. Or make the guardian spawner itself unbreakable, and the only way to move it or get it is via requesting a manager to do so for you.