I came to Berlin roughly 5 years ago before the investment started pouring in and most startups were existenz grundungs, this is when you get 50k from the government and you underpay some interns to build your MVP. It was pretty shabby back then, and things have changed dramatically in the intervening years, but most people came for this vague idea of living cheaply and doing what they want - you could say they washed up here as tourists and stayed. Not that there's anything wrong with that, but these people are being replaced with people coming here for startup jobs that pay real salaries. It used to be that ~500 euros a month was a good startup job, now it's more like 4-5k.
All of this change is happening while Berlins administration is still the bureaucratic and slow machine that it always has been, they haven't built affordable housing in 25 years, there's no plan on how to reduce congestion or prevent gentrification from wiping out existing communities. Registration takes ~3-5 months to get an appointment, god forbid you're a foreigner and have to also register at the ausländerbehörde and wait from 3am for the 1 of 50 tickets available that day.
It's nice that people still see a future here, but i take an issue with such a rosy picture of what it's like to live here, because it really isn't the case.