Marketing has, and will continue to, ruin notifications. One time notification paint is ready? Surely, they think, they can upsell you on other related and tangential products. You know, to ~~keep the cash flowing~~ help you be more successful at your DIYing.

Improvements are still improvements.

How does a good actor do this in good faith right now?

Email? Costs money. SMS? Costs money. RSS? Wildly unpopular. ActivityPub? Can't be statically hosted and fairly unpopular.

Right now they basically use fucking Facebook and fucking Twitter, and even then you're subscribing to an entire stream.

> Marketing has, and will continue to, ruin notifications.

This is one of my personal "Laws", except it's not just notifications. Any communications medium will eventually be ruined by spam. What makes a medium useful to legitimate consumers/users is what makes it a target for "marketing", i.e., spam.

I've seen multiple media ruined by marketing in my lifetime. This isn't a technological problem.

It is technically trivial to make a forwarding email address that works once and only once.

That was the first thought that struck me when I saw the headline and tried to guess what the posting was about before clicking the link. At least 2-3 times per week I find myself wanting something like this. Often it involves leaving my email address or my phone number to have someone contact me. Or having to check back.

In its simplest form, this isn't all that hard to build. The tricky bit is to get people to use it. And perhaps even to explain what it does and possibly how it works.

If someone knows how to sell it, I'd be willing to build it.