system
Given the following post, respond as if you're commenting on Reddit:
human
I am playing an online game with a large player supported market and keep finding things that are not being efficiently utilized. I am interested in studying this but not sure where to start.

So more detail.  I am playing World of Warcraft Classic Wrath of the Lich King.  The original version of this was released well over a decade ago and there is plenty of information available online about various gold (the in game currency) making strategies.  I am making an insane amount of money by buying items from the auction house (player market), converting them to other goods, then selling them.  Any player can pick up the skills I use to do this at minimal investment of time and in-game currency.

I am curious why, despite the ease of learning about this market, it is still so easy to make large profits with minimal effort.  I am seeing returns from 30%-100% depending on the day.  If I had more time to play I could probably increase that further (though obviously with diminishing returns).

So anyway, if I wanted to read more about this phenomenon where should I focus my study?  I tried browsing the FAQ but I didn't see this addressed specifically.

I know it is hard to apply real-world economic principles to this as these items and in-game currency do not directly translate to any real-world value but I still find it very interesting.
gpt
In real world markets virtually all participants are trying to maximize monetary return but that's not necessarily true in the game world where enjoyment is the main goal for a large number of participants and most probably do not enjoy trading as much as you do. This is likely what leaves all those arbitration opportunities open because other players prefer to earn in game currency in a way that maximizes enjoyment.