[nelhage]

We used precisely this optimization in [sorbet](https://sorbet.org), a brand-new type checker for Ruby, which also contains a high-performance LSP server.

We wrote the entire thing (and tested, using ASAN and fuzzers and other techniques) to avoid leaking memory, and then strategically inserted [the equivalent of a rust `mem::forget`](https://github.com/sorbet/sorbet/blob/0aae56e73c7680ec6053b3...) into the end of the `main` driver during standalone mode, to avoid calling those destructors when we're about to exit anyways.

This optimization is definitely still relevant for new systems today.