As someone who just left berlin for good after growing up there, it is repulsive to see a brit mourn the worst and backwards parts of "berlin" just because they are connected in his mind to some romantic roughness. Slowly fading of Cash only mentality, Piss and Smoking everywhere are among the very few positive developments i could see before deciding to leave. (Though it is still nowhere near feeling like a convenient or modern city.) Can we please stop using user tracking as an argument against supporting cashless payment? I have heard this so many times and no one talks about removing the option to pay by cash, just not forcing you to run half a kilometre to a ripoff cash machine in the middle of the night, just stop this.
That aside, i see a stream of friends leaving berlin with me in a relatively short amount of time, everyone has his own reasons but for me it was a mixture of not being affordable anymore, being backwards and inconvenient as well as feeling unfair (i moved to a different country, this is true for all germany) Most importantly i really feel the people changed quite a bit in the last 7 years specifically, not just in my surrounding but also the vibe of people on the streets and shops, everyone feels fake and pretentious, not in the tourist sense but in the sense of looking at instagram profiles of people you dislike.