I read this short story in a Czech translation before the year 2010. It was included in a collection aimed at "younger readers", but sci-fi and fantasy collections in Czech and Slovak translations often tended to be put together haphazardly, so it might not be its original intended audience.
I would like to read it in English and preferably in its original context.
It was a light sci-fi story dealing with the social aspects of Massively Multiplayer Online RPGs.
The main character is a teenage girl whose only hobby is playing a certain MMORPG. I believe the game's name is never mentioned.
She was struggling with the portrayal of female characters in the game, but she eventually joined an all-female guild of like-minded players and was able to play comfortably.
The guild was considered elite and one day was hired to raid and grief areas where apparently new players were crafting low-value items.
I believe that payments for these raids were in real-life money.
One day, during one of the raids, the girl and her fellow players were contacted by an activist who told them that they were raiding a real-life sweatshop where poor children were forced to craft low-value items in order to level up characters to be sold. If these characters are killed in the game, their players won't get paid for the day. The activist pleaded with the girls to stop the raids, but they were ignored and killed repeatedly.
The activist eventually reaches out to the girl when she is alone in the game and pleads with her, showing her pictures of the harsh conditions in those sweatshops. During this meeting, the activist notices that the girl's username was Kali and asks her if she is from India. She must admit that she is actually British. She agrees to help the activist.
The girl is obese and is eventually diagnosed with diabetes. This forces her to change her lifestyle. She starts playing hockey and only spends a limited amount of time playing the game, which takes her somewhat out of the picture. However, it is suggested that based on her actions, her guild starts helping the activist.
I remember that when I read it, I was struck by how many "little things" from the life of an MMO player this short story realistically portrayed, such as disassociation due to a lack of realistic representation, health issues, isolation from family, and the possibility of exploitation and cultural appropriation. The author was able to create a context in which these aspects stood out as sore thumbs without being preachy.
Now my research lead me to Cory Doctorow's For The Win, which has many similar themes but story I'm looking for definitely predates it.
Also some discussion on MMOs having a capacity to be exploited by sweatshoppers apparently existed in early 2000s (i.e. this [forum])2. The name Julian Dibbell is sometimes mentioned in these early discussions, but none of his books match the style or even genre.