Have you ever caught a marketing or spam email sent using one of your email aliases?
That's a use case for aliases, catching if any company or service gives out your email to be abused by advertisers and whatnot. I tried looking for stories but didn't find any, I wonder if you have any to share.
I got a pump and dump scam from an alias that I only used for my brokerage account. They assured me it wasn't them. A week later they publicly announced that they were hacked.
Sure. From my bank, credit card and Mr. Lube (auto service shop). I haven't noticed anything that indicated my data ended up in a breach. Just a few companies that abused my trust and sent me spam.
I've been using email aliases for a few years now, but all spam I get is addressed to my main email (which admittedly is readily available on my website). Seems like no one has sold my email address yet
Yep! Only about twice in several years though. Sometimes it's the same company that started up or bough another company and gave your email without telling you.
Not that I am aware of. Though one time someone made a Facebook account using my email. I was able to log in by requesting a password reset, then I posted a status message (or whatever) that said "Get your own goddamn email" and then changed to the password to gibberish and filed a account deletion request.