alt Hacker News> produce less garbage!
They explained in the post why this wasn't an issue: they were producing very little garbage, but there was a very large object graph.
> manual memory management
If you need to do manual memory management in a GC language with no builtin support for it, like Go, that's probably a sign that you should switch to a different language.
Like D, a proper systems language with GC, and builtin support for manual memory management, and there are others as well.