Monkey's paw: you get your wish, but so does someone who wants RAII and single-use-malloc to be left behind as a leaky and bad abstractions.

We all happily march into a future where only arena allocation is allowed, and when the arena is overfull it can only be fully reset without saving data. Copying still-used data out if it before reset is not allowed, as that's a copying half-space garbage collector. Reference counting is of course not allowed either as that's also garbage collection. Everyone is blessed...?