HOW ARE THEY HERE

Hexbear is a Lemmy instance. Lemmy is a federated and open-source alternative to Reddit. A federated social network is one that is composed of different instances that can communicate with each other. When a user joins lemmy, they choose an instance and register on it. They can then from that account on that instance communicate with the rest of the federated network. So besides hexbear.net, there's also lemmygrad.ml, lemmy.ml (where I am from, and you can see that despite us being on different instances we can still communicate with each other), and others. It works sort of like email. If you register on hotmail.com you can send emails to any user that has a hotmail.com account, but you can also send emails to someone using gmail.com, posteo.de, yandex.ru, sapo.pt or any other email provider.

The people mentioned are generally on other instances that do not have the same culture or rules as hexbear, you can however block those users or even entire instances if you want to.