Were they wrong? Yes, as an adult I've found that words can actually be quite hurtful. But usually from people I already know.
Strangers? I don't think strangers can hurt with words, they are strangers after all, unless they get your real identity. I think a lot of the problem people have with "trolling" is actually caused by self-doxing. When one person is anonymous and another person is under their real name, it creates a power imbalance.
Realistically, people can post on the internet from 200-odd jurisdictions, this is not something that the law could or should be preventing.
The words in fact can hurt and always did. Men used to kill each other over who said what. Words can damage reputations and make other kids mistreat the victim too.
It is easier to say the above sentence then to deal with kids verbally abuse others. It is easier to tell the victim to shut up then to teach the victim to defend himself, to undo damage to their self confidence and so on.
This isn't a hard concept. I don't willingly walk into a mine field, but some people do. I'd totally accompany them if I also had any of the dozens of mine detecting, or detonating tools, vehicles.
You may have a moral obligation to stop people from being hurt, but you have no moral obligation to stop people who willingly choose to be hurt, or accept the risk it.
You are in control of the media you consume online. If you don't like the online community standards, leave and block that community. Or develop the equivalent of mine detection or explosive resistance coping mechanisms for verbal for visual abuse. Before you walk into the communities that permit hostility.
jails you for trolling
Insist that there is a fault with the results of education?!
> that we can solve?
How?