I thought the core vulnerability of Manifest v2 is the new code can be loaded by an extension on the fly without any extension update. How would you vet that?

I only trust free software, and only after I have read its source code and evaluated the distribution channel. I don't want proprietary obfuscated third party code running on my computer without some serious sandboxing and virtualization limiting access to everything. I went so far as to virtualize an entire Linux system because I wanted to play video games and didn't trust video game companies with any sort of privileged or low level access to my real Linux system.

Malicious actors are known for buying up popular extensions that are already trusted by their user base and replacing them with malware via updates. The proper technological solition to such abuses is to make them literally impossible. Exceptions can and should be made for important technologies such as uBlock Origin.

Absolutely. The web is mostly ad funded. Advertising in turn fuels surveillance capitalism and is the cause of countless dark patterns everywhere. Ads are the root cause of everything that is wrong with the web today. If you reduce advertising return on investiment to zero, it will fix the web. Therefore blocking ads is a moral imperative.

> Worry about the interim where some publishers would presumably cease to exist.

Let them disappear. Anyone making money off of advertising cannot be trusted. They will never make or write anything that could get their ad money cut off.

People used to pay to have their own websites where they published their views and opinions, not the other way around. I want that web back. A web made up of real people who have something real to say, not a web of "creators" of worthless generic attention baiting "content" meant to fill an arbitrary box whose entire purpose is to attract you so that you look at banner ads.

I'm just saying that I think this is good interface design. Virtualization, sandboxing and gating access to data and computing resources are good things.