For your compiler, everything not stated explicitly is ambiguous and potentially important. Talking good may not be necessary for every day conversation, where

For your compiler, everything not stated explicitly is ambiguous and potentially important. Talking good may not be necessary for every day conversation, where the stakes are typically low, but you'd go out of your way to avoid grammar mistakes in something important like a legal contract or a published article. Presumably if someone were talking you through modifying your computer and a single wrong move would brick it, you'd ask for clarification should they say anything even remotely weird.