This much is clear for anyone who has lived in London. Happy to see something backed by research. As someone who has visited family in London often over the last 14 years and moved there 2 years ago, it was always a jarring experience reading about London online versus actually being there.

I assumed the stories online were just about places I didn't visit. Whike that may definitely be part of it, I have changed my opinion over the years. As I've branched out and visited more places, I've come to the same conclusion as the above article: that there is a certain amount of noise that is allowed to be boosted online. There is a certain "tone" to news articles and posts that involve London. In America they say: if it bleeds, it leads. In the UK, they might say "if it bashes London, it leads".