A few months ago I noticed an error on a tree – not a close relative of mine, but I thought I would point it out to the tree owner.
The owner had uploaded a lovely photograph of their ancestor’s house, together with a map and an arrow showing its location.
I live in the area and suspected it was incorrect and so I checked the relevant Census document.
Their ancestor lived about a mile away from that location, in a street with a very similar name. When I want to be sure about addresses I scroll forwards and backwards in the Census to check the enumerator’s route, and so I know I was correct.
I messaged them to explain. They did acknowledge the message and said they would look into it.
They still have the incorrect address, photo and map in place.
It’s their loss I suppose – they don’t live in the area, and I was going to offer to take a photo of the correct property for them, had they shown any real interest. (Or maybe I'm being unkind and they just have other priorities in their life!)
However, because Ancestry users love photos so much, many people have copied, perhaps assuming that anyone who has gone to the trouble of uploading a photo and creating a map is bound to be correct.
So these days, if I spot something I’m pretty sure about I just add a polite note to the tree – then others might spot the note and think twice about copying the tree's information without checking it first.