Boredom. Arguing = Entertainment.
Axelturfing.
People enjoy arguing on the net, what with the limited consequences if they are proved wrong.
Axelturfing.
To appear scholarly.
Axelturfing.
Does not fit their agenda.
Axelturfing.
Attention through turmoil.
Now, your turn.
I think those reasons about cover it. There is no benign reason. Someone truly interested would study up and realize that most likely there is SOMETHING wrong, and they would also realize and admit that a “natural born” citizen is not equal in every way to a “citizen”.