Absolutely not! If there is another excuse for people to try screwing me over, I sure don't want to wear it like a banner.
And if Aspies could identify one another through a secret badge--I don't even know if I would want that. We differ so much in opinion, beliefs, and creeds, and I don't know if I want to hear about their special interest or they want to hear about mine.
At home I used to use an old black phone without caller ID (Northern Electric No.1, designed by Henry Dreyfuss) and it is nice to have that element of surprise in human interaction. It's easier to be polite if you don't know...is it that insurance scammer or your mother on the line?
So no, I don't think the sign would be a good idea.
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Your neurodiverse (Aspie) score: 134 of 200
Your neurotypical (non-autistic) score: 72 of 200
You are very likely neurodiverse (Aspie)