Vapor has nothing to do with data hosting costs and DDoS. It solves the problem of data ownership, incentive, monetization, etc.
This difference in the interpretation of what benefit decentralization provides is why many past "decentralized internet" projects have focused on the networking aspect (censorship resistance, DDoS avoidance, etc.) whereas Vapor is taking a different approach where it tries to solve a different problem. Its main focus is to decentralize the power structure, and to do that it needs to solve the data ownership (both philosophically and technologically), as well as frictionless monetization.
The goal is to change the power structure that drives the web, and I believe it has more to do with how the data itself is structured (so that it can be distributed trustlessly regardless of the network) than the network stack.
How does this help data ownership? How does this decentralize the 'power structure'? The ownership and power is still in the hands of the server. The benefits you highlight here are addressed by SSL. Is this trying to address the downsides of SSL? I can't see how it is/would.
It seems like 'frictionless monetization' is the only thing this really addresses, and even that I'm skeptical of.
I don't mean to be such a detractor, but you really need to reconsider what the purpose of this technology is and sell that purpose better. Because your current explanation makes no sense.
Because the goal is not to lower hosting costs and avoid DDoS, but to create a data structure that can be routed around in a trustless manner (by double signing the HTTP requests and encapsulating in an offchain Bitcoin transaction format with unique SHA256 hash ids for secure synchronization), it's solving a completely different problem. The features were derived from this goal.
> This difference in the interpretation of (what benefit) decentralization provides
It's not obvious what problem you mean. In particular, what is the problem of data ownership?
> Its main focus is to decentralize the power structure
Can you explain that in concrete terms?
Don’t confuse the Bitcoin protocol with the public Bitcoin ledger!
They didn't, but the story sure did.