<human>: Can you condense the text into three sentences or less?

So I was playing Runescape and saw another player in the Grand Exchange asking for help, willing to pay half a million. Now most of the time you see this, it is usually a way to lure you into a Player-vs-Player area and getting your friends from private chat to strike the person, causing him to die and gaining all of his items. So I was thinking he was going to do it this way because and wanted to caught him in action. So I agreed to help him, still thinking that he was going to lure me. He asked me for a help in a quest he didn't know how to finish, so I told him to follow me and he did, I told him what to do and he finished the quest. Afterwards he just gave me the half a mill and said thank you.
<bot>: Played Runescape, saw someone asking for help for half a mill. Thought he was a scammer, agreed to help. Helped him and he gave me the half a mill, judged a person wrong based on previous experience.