alt Hacker NewsTotally agree with unique at own domain isn't actually privacy. It wouldn't take much of a paper trail to work out the details.
I continue to use it everywhere for a few reasons:
- if someone emails me acting all friendly like we've had some previous relationship but it's sent to linked@mydomain or github@mydomain I know they've just scraped my contact details and it's spam
- similarly, if a vendor leaks or sells my data and I start receiving marketing from somewhere I don't expect it's easier to trace the source of the leak (and in some cases just blackhole that entire email address)
- I already use a password manager and have different passwords on every site, but having a different email address too raises the barrier further for someone trying to script an automated attack based off some other pwned data set.
I agree with all of this. I’d add that it’s useful for sorting and searching. Things like keyword matching, from address, and from domain aren’t as consistent as you’d hope, but companies do need to actually email the address they were given, so you can use it to reliably identify emails from them.