Re: nautical language rant
This isn't about grammar Nazism. This is about using effective terms in a specialized setting: Boating. Specifically: Sailing. There's a lot of gear, mechanisms, lines, etc. on a sailboat. When there is more than one individual operating the boat, clear, precise and succinct communication is absolutely necessary.
It could mean the difference, for example, between a successful crash tack and an unfortunate t-boning.