The unfortunate reality is that someone with severe mental issues will only get worse with constant access to the internet, so building a support network via internet friendships will basically guarantee the person never gets better. The entire TF2 community can decide to not react to her overnight, and she will find refuge in another community (maybe another video game, a hobbyist discord, a message board) where the entire process repeats itself.
If you think that isn't true and they can surely get better if they just have a couple of good friends to DM, then I wonder if you think the best course of action for an addict is to learn moderation instead of practicing sobriety. As long as someone with issues who has access to the internet where she can obsessively check old posts about her that upset her, have parasocial relationships with top invite players to feel valued, and interact with any troll or bully that comes their way, it's only going to get worse. A TFTV thread dedicated to a single person is way more harmful than helpful even if the intention is to spread awareness. Now RoL has something she can obsessively refresh and get mad at for the next few days.