What does the word "player" mean on the Internet?

The explanation of "player" a long time ago was a derogatory term for an actor. In ancient times, the status of a player was very low, which was a derogatory term at that time. Now, it's just a neutral word. Now we all know that actors are acting for people to see and don't mix their own emotions. Such people are often misunderstood and can't understand their true psychology in real life. So there is a saying that players are ruthless.