Seems that the “Vending machine” that satoshi idealize not longer exists on mainnet
So resuming
- The instant Vending machine is possible only with lightning network, in mainnet it need to wait
- On mainnet those vending machines are not instant and need to wait up to 3 confirmations of the TX.
- Without confirmations all UXTOs can be double spending with FullRBF feature. (This is not enabled by default, but seems that is getting widely adopted)
Thank you all for your replies and thoughts
First of all, I'd kindly ask you to lower the height of your images as they take too much space.
Let me change it, I used to use imgur and always used lower size images, but sadly that hosting is not longer working on bitcointalk.