I have one thought regarding blacklists. They can actually have a reverse effect, than planned – people may willingly check blacklisted addresses to find out some “terrific” “horrific” content. Due to known rule of people’s actions: what is forbidden, is the most tempting. Especially for young people.
I tend to agree, but governments have never been known to use logic when making rules.
Which fairly highlights that the notion of what is horrific or terrific, is opinion; and opinions change over time.
The solution I’d expect is likely a simple overlap of opinions, one of which might be a “Government” base law set; another might be a “Political” flavour to choose; another might be an individual preferences.
Perhaps the Government in future is a choice, more refined than the location you are, and more representative - more agile to threats and reality at a time. It’s fair to acknowledge that society is organic and roughly tends to exclude the selfish and nasty qualities that are fairly at odds with the natural morality of not imposing stupidities. More important perhaps is the basic reality that what appeals to the majority is not perfect - society is early middle ages and needs to learn from its mistakes and tools to match. Also Government tends not to be a noble philosophy and more the dumb default to represent some normal of the day… whether that is wide or narrow, of course varies.
Point being, there are alsorts of options for bounding everyone’s interests and they need not be complex and over-managed, in order for them to work well. The imposition of one interest, is at odds with everyone’s interest.
2¢
When you know how these work, that is not possible.
I was talking with someone involved with this process (advising google back in the day) there is a hash made from the contents and is called a signature. The testing is to hash the contents and compare with the list. There is no way to reverse engineer the blacklist since the address/location was not even used and the hashing process prevents the recreation of the contents.
AI inteligence recognize porn etc and denied to upload this content 
btw on normal internet there is also ilegal content etc and its “normal”
That doesnt make it fall in with legal compliance which is what were looking at.
If you havent, please read the thread.
Microsoft Azure
AWS
These two sum up the whole debate about data stored on the Safe Network. The network ONLY provides a service but is totally unaware of the data stored on it. In same way AWS and Microsoft store data from their customers and are also unaware of it.
Big difference between totally unaware and being unable to, should they have reason.