Vantage has some great climbs and unfortunately some people do tie up routes all fucking day, because they treat it like they are at a gym. If someone asks me politely I will let them use my rope, or I'll pull my stuff as soon as we have finished. Generally the people I climb with do the route and move on to more climbs, be it at Vantage, Leavenworth, Smith, Wild Iris, J Tree, etc. Most climbers are like us, but there are those few that test your patience. I'd like to give one a good poke in the nose, but then again these are the same types that would sue rather than give you a poke in the nose back.
This is not a new problem, hell in the early 70's a friend of mine got into it with a climber while he was belaying me up a very difficult climb in Leavenworth. I guess I was taking too long for the MF'er and he announced that he was going to pull me down. That's when Mike took out a "BIG" hex and offered to decorate his head with it.
I guess some people just have too little time off and they are in such a hurry because life is passing them by so they make up for it by being rude.