Said on a forum that was accessed by IP protocol.

We don't, but the entire world currently does, and the amount of equipment deployed that depends on it is substantial.

I would be willing to bet money that any "better call addressing system" would be a design by committee where this just gets litigated there. And we'd end up with either a system that requires KYC per-call, or has compromises similar to what we're complaining about now.

I suppose you'd like to replace it with Email since that doesn't have any spam, hmm?

Because the concept of numbers is so heavily baked into many systems. Momentum is a beast.