I don't understand the drivers in the US for that.
For me I was taught that the only lane that you are driving in is the right lane. That's it! All the other lanes are for overtaking, so if you go on another lane you are supposed to move back to the right just after, even if you have to change lanes again 5s later, even if you are driving above the speed limit.
I'm pissed at people staying in the middle of the highway even though they have space on their right.
Yeah but we're not talking about weaving, we're talking about those selfish bastards that hog the overtaking lane because they're turning left some time in the next 27,000,000 years.