While the author makes good points about the relative affordability of Berlin, one does have to wonder what the general plan for newsletter profitability is.
If the idea is something more highbrow, again, surely they could just subscribe to the Telegraph? Or watch Fox News?
Or heck, just use reddit? Lots of different viewpoints there.
Providing people with news that violates their own political biases and then getting them to pay for it seems very difficult. The more open minded ones who are willing to pay for views different to their own have lots of places they can seek out such views already.