Firstly, I do not have my tree on the net.
While browsing Axxxxxxy family trees I come across quite frequently my gt grandfather is named in trees.
I have the shortest genealogy line in history, can name them on one hand., so why does his name crop up.
I check the trees if it is a public tree and cannot see any connection with him and the rest of the tree.
Please understand I might be wrong and is missing the missing link.
Because my line is short obviously I have spread out sidewards to include my gt gt grandfathers brothers and sisters to make my tree interesting for me.
Secondly, if while browsing these trees and you see an obvious mistake do you contact the owner of that tree to correct them. I dont but I do get irritated by it.
I try to back up and have a paper trail for verification when I can, if not, even my research has a question mark on it.