> I thought this was a safe space for hackers to express enthusiasm about pushing their own hardware and software further (and in this case even in a comparatively safe way).

Nothing is preventing said experimentation nor discussion of it. I am merely offering my more conservative views of the situation as a contrast to the echo chamber gungho nature of the experimentation. Just because we can doesn't mean we should is often left out of the conversation. At some point, the net negative that comes from the use of something "cool" is never contemplated by those creating the something "cool" simply because they would never fathom using the "cool" for "uncool" purposes. Sadly, someone else will and weaponize it in an uncontrollable manner. If the creators can't think of how it can happen, it is vital that those not so involved in the creation speak up when there are potential issues.

I wouldn't describe it as "conservative" but as "pro-native-apps and anti-web-apps", which seems irrational in this day and age where "native apps" means platform lock-in by monopolies, less sandboxing and user-control than on the web, much more gatekeeping and control over published binaries, and these days the web app is usually a more private/secure alternative to the native app (which also bundles a marketing SDK, now, and fingerprints you invisibly via iCloud Keychain, tracks you with various identifiers, and more).

If native platforms removed USB or Bluetooth, the "control over my own hardware" crowd would flip a table. I just wish they also understood the benefits of the web compared to native. The Chrome/Project Fugu team's dream of making the web platform as powerful as native platforms is the correct one from a user freedom standpoint, or at bare minimum a "user choice" standpoint.

>Sadly, someone else will and weaponize it in an uncontrollable manner.

Except it isn't "uncontrollable". You have to explicitly allow every single website to use WebUSB. Without that explicit allowance, the website can't access anything.

Plenty of things can be weaponized, even household utensils. Should we ban all forks?

The sky is not falling, and WebUSB is not going to cause it to fall.