> I alias every single new account I make to know who sells my data.
I wonder if that's ever happened yet. I do the same with Firefox Relay, it's only $1/month to keep using my existing email. I have probably hundreds of accounts that haven't had their emails updated yet.
It did, I received unrelated spam onto aliases I used for major electronic chain(MediaExpert - polish MediaMarkt essentially) and two other minor services I don't remember anymore. It also happens that few of my aliases were leaked from data breaches so that also helps.
