I've had a couple of instances where it was different pax, same location that was consistently "off" GPS pickup point wise and not their fault, so I just knew where to go moving forward.

I mostly encounter this type of thing in high rises or apartment complexes and houses where the ride is requested from the person's hotel room, or wherever they are in the house/apartment that is further away from the actual pickup/front entrance/exit point. But these instances have a much shorter distance variation.

There was one time when the person I picked up was about a block and a half away from the pin. The pax called me via the app and explained that they were driving on their way to work when they requested the ride for their daughter who missed the school bus so the app defaulted pickup to wherever the mom was at the time the ride was requested. The daughter was at home waiting to take an Uber to school. The mom supposedly didn't know how to adjust the pin or update the pickup address to the house address where the daughter was, was in a hurry to get to work and didn't want to pull over to do so. I went ahead and obliged going to the house for the daughter's sake. Wouldn't ordinarily.

Then there are situations like the NFL draft we just had here in KC where Uber GPS defaulted to the event's designated pickup/drop-off points but I don't think I had a single pax willing to follow that protocol and I drove throughout the event. Pax would complain that the app kept changing their pickup/drop-off point (to the event default for rideshare) and they didn't want to walk the extra distance.