It’s important to remember that you have the power to be an active bystander.Ultimately, your family member is the only person who can choose to stop the abuse, but there are a few things you can do to encourage them to behave in healthier ways.
But identifying predators is a useful skill, not only for victims but anyone online. Financial ones who run scams, sexual predators who target adults and children, and I would say internet trolls are also a type of sadistic predator.
Stalking is a hunting term and a stalker is a type of hunter. Stalkers don’t just go online and start targeting the first person they meet.
Many of these types of predators are abusive both emotionally and physically.
Some are serial rapists who target women or men, engage with them, arrange a date and then rape them.
If the victim is young, they threaten to tell their parents or friends.