Which is in some way worse. Not only would the TOS allow YouTube to ban Rossman, it would allow them to ban every person who uses GrayJay. Obviously they're not going to do that because of the collateral damage.

You can get upvotes here but this smartassery will get you a spanking in court.

It's not functionally possible to develop software without using it.

I don’t know. I’ve used plenty of software where I’ve asked myself “Did the people who wrote this ever try to actually use it?”