Don't forget she has a disability as well (she's deaf) and so whatever issues she is struggling with only add to that particular burden. Depression is hard work on top of a disability - I'm in that position myself. Lets not judge her too harshly eh?. After all we don't know her particular circumstances, how she feels, or why she feels the way she does.... I am no psychologist but would suggest that the Gaming comp is only the tip of the iceberg. Reading some of her posts elsewhere it is as if she feels marginalised and/or as if she is unwelcome/unwanted.... I'm not saying Depression is an excuse. But it does skew the way you think/percieve things.
I hope she's ok