"an adoption of trust between "things" that predominantly have been called the hardest word I could ever thought, neighbours (instead of nodes)!"
This is wrong ;) You don't trust anyone when you run a full node in IOTA. All you need the neighbours for is to keep in sync with the network. It's like with Bitcoin and it's P2P network. Furthermore, if you don't want to run a full node, you can run a light node and connect to a server running the IOTA IRI. Note that when doing that, your SEED aka Password never ever leaves you PC. For more detailed information: www.iotasupport.com