You know you kinda do feel sorry for the person, yet not seeing as they had no form of self control. If they had that then maybe it wouldn't of turned out so bad in the end, if she said she was tired she should of just taken a few minutes of rest and come back later. It stated she had been playing days straight on it..to be awake that long without food or water can tear you down..but to kill her? seems odd that people would make it sound like the 'game' itself killed her.
The game is a man-made thing, she can die if she chose to sit there and not take care of her health so really it boils down to what really caused it, but I'm sure there are things left out.
About the online funeral I see no crime against it, I've done a few rpgs myself and I understand things about reality and fantasy. It's not a bad thing to hold a memorial towards someone you knew who died, if those were people who knew her and wanted to hold a memorial then so be it. I won't judge them for it, because online is much different than whats real...she probably had a funeral already but the rest of them probably wanted to hold one for someone they cared about. We just do not know.
It seems like a big deal since it's kind of unheard of in some areas versus many other things that people die from due to stupidity.