Earlier quoted context omitted.
email was killed by spam, current email is sadly a walking zombie that's getting eaten by maggots
I have very little problem with spam; server-side filtering and client-side filtering make it nearly a non-issue for me. Email was no more killed by spam than online discussion threads were.
I guess spam and spam filters also have an ecological impact even if spams don't end up in our inbox.
And there are false positives too. Because of spam, we are likely to miss a legitimate message one day or another.
And I regularly see phishing on my professional inbox.
So spam is still an issue even if it is hidden, for several reasons.