This is a very disturbing question. Why do you want control over other people, especially with regard to casinos, betting, and porn? All of those are consensual indulgences.
What is an ethical limit and who decides where the line is drawn?
What is an ethical limit and who decides where the line is drawn?
For example in the case of casinos and gambling, when one enters the addiction phase and takes unnecessary risks we could be nudged, at least, towards no ruining his life.
If you are building stuff to stop people from doing what they want and they didn't ask you to, well then you are treading on questions ground. Unless you want to, in which case, well, build it, because you want to.