I only use the boarding pass on my I-phone and the gate is prominently listed there, usually several hours before the flight. I don't think I have ever seen "non-smoking flight" anywhere on my electronic pass nor do I remember seeing it on a printed pass in decades. I will have to look next time. As far as what baggage carousel is being used I agree that might be a little hit and miss at times but the few times I have checked luggage, the baggage claim is in the same terminal and there has always been a reader board that says which carousel you flight is being assigned.