:Here and here we have a Dutch physicist living in Sweden who knows neither English nor Swedish very well but for some reason wants to control history about people like this, even on en.WP. He follows me and a few other people around at times and does this kind of damage. Borderline stalking (evidence on request), needs to be blocked in my opinion. Problem known by arbiter  and his countryperson Abigor and many others. Hardly ever anything constructive. His destructive input usually equals disruption and is almost always personally sarcastic and uncivil (my theory is that these forums are mainly for him to exercize this behavior, not actually to contribute). Uncontrolled, he is going to make our good idea impossible.