I completely understand what you are saying and I have been doing this for longer than you, as a matter of fact.

I do just pass by questions that have been answered over and over and often on the same page. I have no intentions of making anyone feel badly, I sure would not want it done to me.
My level of frustration is at an all time high right now, not from this board, but from people who enter the garage and you ask if you can help them and they say they are here to pick up their car. Well, no kidding, I did not think you were here for a Happy Meal. Or, they don't know what size car they have rented, how can you not know that? Tell people that the car size they have rented in on the next row on the right, and they go to the left. Explain 4x's about the procedure for renting a car and they come back 2x more with the same questions. Some of the most incredibly rude renters are the Emerald Club Exec. elite. Most have never read the "rules" and expect a free upgrade to anything if it is not on the aisle. I love it, sure, we will give you a Luxury for the price of a midsize......in your dreams. What is on the aisle, either side, is what is available at that time. If you need a mini van, rent one, don't expect that the EA or EE is going to have one. It does not happen all that often.
Sorry for the rant, but, I just wanted to let you know where the frustration of late is coming from.