alt Hacker NewsFor producers, ignoring a SHOULD is riskier because it shifts the burden to every consumer.
For consumers, ignoring a SHOULD mostly affects their own robustness.
But here Google seems to understand it as a MUST... maybe the scale of spam is enough to justify it. Users are stuck between two parties that expect the other to behave.
> maybe the scale of spam is enough to justify it.
This is 100 percent the case, and why these things are this way.
If you wanted to make email two point oh, I dont think it would look a lot like what we have today.