Any discussion of this topic period will immediately bring on accusations of "gaslighting!!!!!" if pointed at specific people, so let's stick with statements we can all agree with
Statement we can all agree with #1
Sometimes people in the online RPG community are mentally ill
Statement we can all agree with #2
Mental illness can cause people to experience emotional pain over things that aren't actually harmful to anyone who doesn't have their specific trigger or chain of associations. To something not ordinarily harmful.
Statement we can (probably) all agree with #3
It's not practical or desirable to talk to the entire internet as if it's mentally ill all the time and almost nobody does. You can tag specific common triggers, but ritually using indirectness, vagueness and soft probing creates a lot of other practical problems to getting anything done and creates new problems when dealing with any kind of urgent situation. It also can strike people as condescending.
Statement we can all agree with #4
If you write online, once in a while someone mentally ill will experience emotional pain because of what you write online.
Statement we can all agree with #5
Sometimes this won't be your fault, this will be the fault of the illness.
Statement we can all agree with #6
This emotional pain may cause them to fabricate or distort facts while expressing their pain. This can cross the line into libel or things like it that can cause real damage to the mentally ill person's victims.
Easy examples: "The authors of Dungeon World are trying to undermine gaming" "James Raggi hates all women".
Statement we can all agree with #7
People will (and should) rush in to reassure the mentally ill person who is caused emotional pain by the innocent thing you said. They are ill, after all, and need care.
Statement we can all agree with #8
This reassurance is hard to do without also reifying the distorted or fabricated facts they associate with their trigger and their pain.
Statement we can all agree with #9
If this is done in public but not done carefully, reassuring the mentally ill person risks victimizing another innocent person by reifying (plussing, agreeing with, condoning, sharing) the untrue things the mentally ill person said in the midst of their pain.
Statement we can all agree with #10
When a mentally ill person appears in the RPG community what should happen is their friends should take their pain seriously but not immediately accept all their fact claims. They should talk to their friend and try to connect them with help and try to do this in private as much as possible.
Statement we can all agree with #11
The online RPG community sucks at this.
Statement we can all agree with #12
The people who are attacked by the mentally ill have more of a personal motivation to do something about the situation than the people who are not.