Disclaimer: I said I would try to be sure to say things in a way where it's clear I'm not attacking him. And I meant that. I'm not good at figuring out how to tell when my words look hostile and when they don't, so I'm just saying up front: I'm not trying to attack anyone (not even the person who really did attack him), I have no ill will towards anyone here at all, and nothing I say here is intended to be mean to anyone. I don't hate anyone, and am not even angry at anyone, just observing a situation.
At this point someone did say something that crossed the line into attack (the attack in question was... well one person who was not attacking was saying they hoped all these bad things wouldn't happen to him, and someone else basically said "Actually I hope those things do happen to him.")
Then some of the people who he had mistaken for attacking him actually stood up for him (which I don't think they'd do if they'd been attacking all along). I would have done so too if I hadn't promised to stay out of that thread. But interestingly, when the one person attacked him, he still said it was "ganging up". I don't know how one person can gang up on someone. If people were really attacking him, they wouldn't be saying things like ":( Too harsh.", "I think this is a bit harsh. Though I don't agree with Surfman about telling strangers that they might have AS, I don't have any ill will toward him at all.", "Like I said, I hope [the things the other person wished on him] doesn't happen to him", and (in response to someone saying it was too harsh), "Ditto to this." Why would all these people be sticking up for him if they were really attacking him or ganging up on him? It just doesn't make sense to me.
At any rate... the reason all these people have stuck up for him is that none of them were attacking him in the first place with their disagreement. If they were attacking him, they would have jumped in and it would have gotten really ugly. They were merely honestly disagreeing, and they know the difference between disagreement and a personal attack, so they obviously were nonplussed by the genuine personal attacks the moment those attacks crept in.
The only person unable to differentiate disagreement from attack (and for that matter, differentiating many people happening to agree with each other for groupthink) is unfortunately the target of the attack himself.
I do know what it feels like though, to have views that are unpopular. It can be highly stressful even if you're aware nobody's actually attacking you. And it's easy to take that stress and assume it's there because people are attacking you, even if they aren't. Sometimes a lot of people happen to agree on something, and it's not being "part NT", it's not being a clique, it's not groupthink, it's just... an opinion that happens to be popular.
Having an unpopular opinion can feel like swimming against the tide. My opinions on disability are fairly rare, and I know what it feels like to swim against that tide. But other people have a total right to disagree with me on that (and on most issues) without being called bullies, cliques, groupthinkers, attackers, or whatever. And if I'm not up for the consequences of voicing my opinions (as in, the stress, watching people disagree with me, including possibly from viewpoints I find appalling, etc.) then I don't, not usually anyway. It's not that I think I'm responsible for other people disagreeing or something (and I'm not suggesting that he's responsible for other people disagreeing), it's just that when I say a particular thing that's unpopular, disagreement is gong to happen, and that's a fact of life. If I don't want to deal with the disagreement then I'd better not say it around people who disagree. Because they have as much right to their opinion, and as much right to voice their opinion, as I have to have and voice my own opinions. If I don't feel like dealing with it, I either don't say anything or find something else to talk about.
But I try really, really hard not to react to those other opinions as if they are attacks. Among other things, one of the really dangerous consequences of taking something like that as an attack, is it's easy to attack "back", feeling as if you are defending yourself. ("Back" in quotes because you weren't really attacked in the first place.) And once you attack other people for what you think are attacks on you, that way lies chaos.
In short, I think I understand why this is all happening, and I can't say I've never done anything similar myself, but I know from experience that it's a really bad idea to go down that road.
I hope what I've said doesn't make it worse, but it seems like it needed to be said. I don't think anyone, including myself, is immune from the mistakes that have been made here. But I do think it's a good idea to really watch oneself and try not to do these things. To try not to see the results of voicing an unpopular opinion on a board full of really straightforward people as an attack, even if you feel battered and worn out from it. Feelings don't necessarily convey reality, and I've found that if I don't relentlessly watch myself then I'm going to hurt other people while thinking I'm only defending myself. And after that, it just stirs up more anger against me, and so on and so forth. So please don't think I'm saying I'm above any of this, it's my long experience with it that makes me say what I'm saying.
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"In my world it's a place of patterns and feel. In my world it's a haven for what is real. It's my world, nobody can steal it, but people like me, we live in the shadows." -Donna Williams