As I see it, maybe 1 out of 10 persons or more would be vulnerable to this kind of software, and on the other hand 1 out of a 1000 or less would be lacking in morals enough to create or distribute it. The same with the drugs mentioned. So striking the source seems to me a better solution than to trying to caution normal people against it while letting the madmen run wild. Especially this kind of software that nobody needs for any purpose.
I don't see this bot as "merely nice". It is made to manipulate the soul of living and breathing people, it is in my eyes a true abomination of evil. This first version will be a subscription model like this one, the next versions will be programmed to manipulate people into transferring their money to whoever controls the machine. After that, the software will be made to manipulate people into doing real world tasks and certainly not for their own benefit. Even if that development can be stopped, already this first iteration will do massive damage to people if it takes off.
Talking about heroin and such, they at least have a certain medical use. This kind of software has no positive use case, and I would not agree in seeing it as some kind of self medication.
As for the solutions you ask for to help people from not ending up in that kind of situation to begin with, that turns them into drug addicts or victims of this kind of toxic software. I don't have all the answers, but I have a few, that can help some people some of the time: I think psychedelic therapy will truly help many people with addiction problems if they want it. It is cheap and readily available. Eating healthy and working out and having a purposeful job or activity. Avoiding negative influences and seeking positive influences, both in company and in what you do.
You and I and everybody are very familiar with the negative spirals of drug addiction or other kind of unhealthy living, but what about the positive spirals? People don't talk much about them. Here's one:
Exercise leads to better sleep
Better sleep leads to higher energy in your body
Higher energy in your body leads to better exercise
One thing nobody ever talks about with exercise is that you feel much better as a being once you are getting in better shape. Not self-esteem, but the comfort and energy of your body (and mind). This makes you feel better about doing active things, such as sports, hiking etc and the activities in turn reward your body and mind back.
Now let's combine this positive spiral with healthy eating. Cutting sugar soon makes every unhealthy sweet food taste horrible, while food that tasted more bland start tasting much better. Being healthier from eating well (and exercise) makes your mind sharper and in turn makes it easier to resist cravings for unhealthy food.
This is the ethical way of hacking your mind, even a bitter looser will be unable to continue being that when he wakes up feeling great every morning.
When it feels good or even great to just be alive, you don't need hypnotic or narcotic drugs (or mindless entertainment) to cope with existence. And you will have the energy to cope with a situation that is maybe shit in other ways (low income, loneliness) and the force to take yourself into a different situation, preferably better.
Another positive spiral is to socialize with better people. The older you are the harder it gets, but cutting toxic people is a good insurance against falling back into old habits. Toxic people can also be highly esteemed people, that are nice and friendly to others. But if their idea of you is a drug addict or a loser or a shut-in, they will never change that idea, even if they are family. You could become an astronaut and go land on Mars and they will still think you are a loser.
On the other hand, associating with positive people will lift you up instead of dragging you down. The positive spirals of this is insane, not only in well-being, but also in opportunities.
There are positive spirals in personal economy, career, wisdom and all other aspects of life - and they all reinforce each other. Just as negative spirals reinforce each other. I could go on and on, but I think people are sick of reading by now.