Ok, I admit that I wasn't yet explicitly looking for #darkpatterns - watching the video on this page gives a good idea on what they are and why we should care more:

https://www.darkpatterns.org/

The first example shows how scared #amazon must be of people wanting to delete their account. Instructions on how to do it are the modern equivalent of being "on display in the bottom of a locked filing cabinet stuck in a disused lavatory with a sign on the door saying 'Beware of the Leopard' "