MS is responsible for creating adequate documentation so the person answering the question can answer the question accurately

The panel I threw in because it seems all the other answers are correct and sometimes these questions contain what I call "the basic truths" where the question has answers that are all correct.

I don't know how to get back to the answers that were in the original question but here is my guess at what the other three were...

Steve can give us credit if he thinks it a good call, so he answers to the accuracy and is thus ultimately responsible for the accuracy of the answers.

The person who submits the original question - well, of course, that person is responsible for accuracy.

AND FINALLY-we who read and answer the question, through our due diligence are definitely responsible and thus, the existence of this forum...

So, yes, I think all are correct (outside of the Panel... I am just guessing that these answers don't appear on the site without some sort of review prior to them showing up here).