Well when I see a poster with that amount of names that they are tracing first I think I am dealing with a women, as they much more than men trace all the female lines and so are researching everybody in the entire world before they know it,along with that they have to use trees that are online,because the size of the task even with computers and the internet is nearly impossible,what the other posters on this thread have been saying is that many people grab a part of their tree and then shoehorn it into their own under researched tree and then they in turn put it on the net,and of course the same thing happens when somebody else does the same thing,before long it is all complete nonsense,nobody minds people asking to use part of their tree,but should understand that their tree should have enough research done to make sure it is the line they want and be willing to answer questions,many people now think family history should be a race to be completed in a week or so and to that end they do not reply to questions and react badly to corrections