By dictionary definition
Sadist
a person who derives pleasure from the pain on others.
Griefer
a person who annoys or harasses other players for their enjoyment.
So griefers get enjoyment (pleasure) from the annoyance (pain) of others.
Sadist
a person who derives pleasure from the pain on others.
Griefer
a person who annoys or harasses other players for their enjoyment.
So griefers get enjoyment (pleasure) from the annoyance (pain) of others.