Not knowing anything about this individual I don't want to make too many assumptions but the broader point here is valid. The whole culture of 'hardcore gaming' is pretty creepy to me. There's a fine line between fun and mental illness. It's too easy to look at this as just a harmless eccentric hobby when, past a certain point, it really needs to be treated more like a serious problem with interventions & rehab. I really dislike how the culture around it is so supportive of obviously destructive behaviors. It's eerily similar to hardcore drug culture at times.