That would depend on where the financial motivation to produce renewable energy is coming from.
A logical argument could be made that bitcoin encourages the production and advancment of green energy technologies by rewarding such efforts with wealth generation.
It's indeed likely more of this is happening due to poor government oversight. Though I suspect the demand for oversight and the desire for organic food will motivate this market to respond. If people are willing to pay money for this method they will likely pay to have it guaranteed in a rigorous inspection.
They do and unfortunately this knowledge has been available for some time.
Here is a simple observation I derived from witnessing much of this over the years. In my experience the bigger your wallet. The more you get away with and the easier it is to change "laws" to further your business interests. I think it is important to understand the lengths people will go to secure a financial interest.
YaCy certainly comes to mind when considering decentralized web search. Google has a strong control of the pipe of people sending it queries. Though, there are certainly other methods.
It's things like this that companies do that should really make one consider setting up their own simple NVR system. It's really nice being able to manage and upgrade your own system this way. Even when you feel like upgrading you still have all your cat6 infrastructure in place.
No way is this going to fly under GDPR. Whatever genius had this idea needs to be held accountable legally for a massive breach of trust. Opt out isn't going to fly in 2018. Collecting money on the behalf of individuals is fine IF they opt in to the service. I imagine this service would have exploded in popularity and been perfectly legal if it was opt in but now.. Yeah.. heads should roll.