I noticed this the first day it was put into service. As I've mentioned before I'm sort of an odd ball when it comes to ads and datamining. That's just me.
To explain why I won't use the feature, I go back to my early days of computer usage. Used to be I used the same nick in all places. After seeing a few guessed passwords others experienced I started changing passwords for every account. So that getting the password for one place didn't open you up to some one accessing every place you went on the net.
Then started the datamining and government snooping. At this point after 20 years of using the same nick, I dropped it and never used it again. Today, on purpose, I never, ever, use the same nick nor password twice. So linking where I go on the global net or accessing my accounts through hacking, if you are successful, will only gain you access to one site.
With the start up of Doxxing, I began to use VPN as a method to hide my IP. I've been threatened with doxxing before. Either they weren't that good or maybe my measures are sufficent to the task at hand. At any rate where they were successful with others they weren't so successful with mine. That's not to say it can't be done. It would be the fool that thought that. But I won't make it easy for them.
The last mistake many make is putting their personal info in a databank. Sooner or later the databank gets hacked and all that lovely data gets taken to be sold on the dark net to enterprising young scammers. I prefer to keep my data myself and not put it in an area sure to be targeted sooner or later.
I'm sure all this reads like a tin foil hat wearer's dream. I can say it has resulted in very few problems on the internet with ID theft, money theft electronically, or as in the case of doxxing, success. All of these measures are for self protection and too late later to wish you had after an event. There is an old saying that if you won't safe guard your privacy, no one else will do it for you. I can't block everything but I can sure make it tougher.