[propogandist]

Be aware that using the “+” is giving you the illusion of privacy and control. A privacy research has shown, back in 2020, that companies like Oracle’s Bluekai (a massive ‘data broker’) has functions to normalize email with + in them to help with ad targeting and matching.

Other vendors and companies like FB are surely doing this too, as companies send FB emails for matching / ad targeting.

https://twitter.com/WolfieChristl/status/1288428611100454912

[pfranz]

I guess it's good to know, but I never had any illusions of using it for privacy. It was mostly to see when I get added to a mailing list, where it might have come from. Another reason I abandoned it so quickly is, if someone sold my email address and put me on a new list, what can I do about it?