Ah yes, the chairlift bar thread. This topic should be stickied so it can be 100 pages long and that way there aren't 100 threads on it.
For real though, I think everyone can agree that no one is going to get in a tizzy if you want the bar down. Just be respectful and let everyone know, hey coming down. Make sure everyone is aware and has the time to get situated. Nothing worse than almost getting smashed in your neck with the bar or pinching your thigh. Anyone who vehemently denies bars and is an asshole when people want it down can royally go fuck themselves.
Some places it's culture to have it up or down. Some kids actually do think they're cool with it up. Others it's difficult such as snowboarders and certain lifts. Many prefer it for an extra sense of safety. If everyone can just be reasonable with everyone, we all can just get along.
The bigger travesty is folks who can't get on or off the lift and are skiing on lifts that primarily access advanced/expert terrain. That's what pisses me off. That's day 1 of skiing level skill. If you fall off a chairlift and are the cause, you are a Jerry.