"What a bunch of snotty responses."

Other than, too vague and wrong program, sure.

"no matter what the product, no one answered the question!"

Uh, "where to enter" is pretty dependent on what is being used and what needs to be entered.

"I have the same question and cannot find an answer anywhere"

There is a resource provided, so the person can learn which and if data needs to be included. And they are directed to the right audience. This is not Customer Support. It's peer users. Not everyone knows everything about every program.

"but it is my guess that the brokers are using this field"

Which of the Two fields is "this" field?

"whether or not the recipient is a U.S. individual or not - even though everything I have read indicates a U.S. individual can ignore it. However, it is not clear to me what a U.S. fiduciary is supposed to do with this reported amount."

Cornell is a great resource, as is the IRS.

You always get a better and more direct answer when you make a topic in the forum section for the Program you are using, and use the Title to put the topic, and then the Input panel is where you provide the details that matter. It also helps you to help yourself by participating with the volunteers that ask follow up questions, because no one but you is looking at that paperwork, that screen, that form, and none of us have perfected our mindreading skills. Yet.