With cheaper AI classification models coming out every day now, the spam problem is on the cusp of basically being solved in every communication channel.

The only question is how many years the lazy network-effects monopolies (like Google, Microsoft, Verizon, etc) will hold this back from happening.

The optimist in me says this will unlock pathways to true decentralization of push communication protocols (like SMTP) instead of only have decentralization of pull-oriented protocols (like HTTP).