And again, I ask... What information or benefit does that give you that you didn't know before? This only works on specific people and targets that you've had t

And again, I ask... What information or benefit does that give you that you didn't know before? This only works on specific people and targets that you've had to identify before using this. I have yet to hear of a specific example of this being used for nefarious purposes outside of confirming that someone visited a page and there are hundreds of ways to do that without needing to invoke this workaround.