Fast forward to 2019 and I still don't see much in terms of people raving about beacon and proximity marketing, likely because the majority of phone users don't keep their bluetooth on.
I've also read a little about nodes, which seem to be a way around the bluetooth issue.
Is there anyone in 2019 who is using beacon/proximity marketing? If so, what do you think of it, what are the main obstacles (privacy, etc.), and do you think there is a future in it?