@davemee thanks for understanding. I've been in the industry for a long time and the issue of sitting on an ISP connection and T&Cs is nothing to do with traffic volumes, but potentially 'anonymous' access to the network (which UK ISPs definitely don't want).
I really wish someone would explain the LoRa security model i.e. you get a device and it has a DEVID and it connects to a gateway, the data is then forwarded in the network to an end-point. The security key can be issued by the end-point (but who controls the end-point access to the network?) or an OTA key is generated by TTN (which I guess is like a dynamically assigned key compared to an end-point key which is static).
ISPs/telcos really do not like the thought of anonymous devices being able to connect across their networks.
Someone compared TTN to running an open WiFi connection and allowing people to connect. It may have some similarities, but it's sort of different and the number of people running open WiFi is decreasing all the time as there are issues (as well as potentially making you an ECN there are potentially other issues). Many sites use a 'hotspot' login specifically for plausible deniability when someone accesses the network (even though you can enter any email address).
For open WiFi the following happened to a colleague. He worked for an ISP and had a big fat pipe to home and he thought it would be nice to run a closed network for his stuff and open that would allow anyone to access the Internet. Unfortunately someone decided to upload child porn using his open WiFi and this had been tracked by the Police. They then traced it back to his network and he was promptly arrested for uploading the material. He claimed innocence, but all the evidence pointed to his network (even though he explained he allowed an open WiFi network). So he was charged pending an investigation, ALL his computer equipment was seized (and I mean everything) and put in some warehouse pending a forensic investigation. The Police aren't particularly quick at investigating and it took about 9 months for the computer forensic team to examine his computers/network etc. They didn't find any trace of child pornography on his computers and did indeed find he ran an open WiFi network.
Meanwhile he'd lost his job (being charged with a sexual offence is pretty well guilty until proven innocent) and it caused him no end of trouble and it took a long time to build his reputation again.
Now I agree the TTN isn't going to be used for this kind of abuse, but it could be abused.
As I have previously stated, SIGFOX also require a DEVID (generally printed on the Arduino board or whatever you're using" and they also issue a PAC type number (only network operators such as SIGFOX themselves or say Arqiva in the UK who operate the network can issue PACs). Each PAC is tied to the device and once registered to an account, it cant be transferred. That means they control who has access to the network and each device is tied to a user (person or company).
I believe TTN should do something similar so somewhere devices have to be registered in advance to access the network. Anyone can try connecting a device, but packets won't go anywhere unless the end-device is 'known' to the network.
There's also this (from Wikipedia)
It is an offence under section 125 of the act to obtain access to the Internet when there is no intention to pay for that service. The legislation was intended to prevent the major defrauding of communications companies. Nevertheless, the individual practice of piggybacking (the illicit use of a Wi-Fi connection to access another subscriber's Internet service) was demonstrated to be a contravention of the act by R v Straszkiewicz in 2005.[5] There have been subsequent arrests for the practice. Piggybacking may also be a breach of the Computer Misuse Act 1990. Section 125 of the act has been criticised for its vagueness, resulting in the possibility that many users of portable Wi-Fi enabled devices may be inadvertently breaching it.
So that is already law.
The full Act may be seen http://www.legislation.gov.uk/ukpga/2003/21/contents
Definition of Electronic Communications Networks and Services
http://www.legislation.gov.uk/ukpga/2003/21/part/2/chapter/1