I don’t know if this partially a confession or merely a research method but I have a tendency to stalk people with my surname and on occasion other names in my family tree.
There is something I guess to the fact you write your surname so many times over in your life it’s a bit like a magnet. It becomes so easily recognised to brain.
At the moment I am cooking up a plan to meet some more Dietrichs. More planning and plotting to bring together people who share some DNA.