[dlkmp]

Is this really a problem people have? I personally just use some free mail account for all low-priority stuff without push notifications enabled in my client apps.

[DrBenCarson]

People use password managers so they can conveniently have a single password without a single breach compromising all of their accounts.

This is the same idea but for their email identity.

[jabroni_salad]

Here's a fun one: https://www.martinvigo.com/email2phonenumber/

The more places you use the same email address, the greater your exposure.

[knowaveragejoe]

If you are privacy conscious, yes. Compartmentalizing emails used for services is useful. It also tells you who is selling your information.

[toomuchtodo]

Also, when it is clear someone is abusing the email you provided, you can nuke it. Perhaps some functionality to be had here between aliases and haveibeenpwned detecting an alias in a breach, queuing for alias cycling or invalidation with a human approval step.

[eli]

If one address is getting spam I can just turn it off or filter it to the trash.