Some players may engage in behaviors that can negatively impact the gameplay experience of others. Examples of such behaviors include, but are not limited to:
Griefing: when players place items that block your passage, pull the lever on bosses to make you lose the boss, move you away from levers, stay on the lever to not let anyone do the boss, etc.
Luring: players can lure monsters on hunts to kill players. They can do this on normal hunts or make traps with boxes of monsters that you will die when you fall into them (when you enter a portal, a hole, etc).
Stealing/Ksing: players can follow you through your hunt and deal more damage than you, stealing your monsters and making you earn less exp and almost no loot. Normally, a high-level player steals from low-level players to make them submit and do what they want (like quit the game, forcibly join their guilds, pay hunted fees/ransom, transfer to another server, etc.).
Scamming: people can trick you into buying useless items for high prices, steal your belongings with frauds, and a lot more.
Harassment: they can send hate messages, hate mail (parcels with some stuff to infuriate you), steal your hunt, block your passage, follow you everywhere and keep you annoyed.
These behaviors can occur in all game worlds, including Opt-PvP servers. Some of these behaviors may be considered illegal or against the game's rules, and players who engage in them may be reported to the game's support team for investigation.
On PvP servers, most of the bad behaviors result in wars and people killing each other. Wars are good for the economy of the servers. They can last years or weeks, they can be settled on a deal, or by kicking the losing team from the server.
If you encounter any of these negative behaviors while playing Tibia, there are several things you can do to mitigate their impact on your gameplay experience. You can try to avoid players who engage in these behaviors, report them to the game's support team, or seek help from other players or their guilds (or other guilds not related to this one) to combat these negative behaviors. Additionally, it is important to stay informed about the game's rules and guidelines to ensure that you are playing within the game's guidelines and avoiding any behaviors that could be considered negative or harmful to others.