All the comments here are about drawbacks and limitations. The upvotes on the submission might be explained by quality of the product, but the comments not so much.
Meaning can be also inferred from context. Even in your example, the conversation context and follow-up statements could home in on the context.
Sure, maybe it would be better if everyone just wrote in a non-ambiguous way, but you're on an international forum where many people don't have a native understanding of the language (me included).
I understood what he meant immediately. I also don't agree with the comment, but that's another subject.
