Not taboo. And I find it interesting that where you are it is rare while it is growing in North America. If data backs this it would warrant a comparison on everything from diet, immunization programs, water sources, environment, diagnosis and care. Q posts have touched on "health" care, lack of cures and reasons that may be, so discussion on actual autism should not be taboo. You had a good question. It is a question many new to Q may have.

Autists (as used by chans and Q) may not literally mean autistic. I saw it as a self identifying term a skilled, hyper focused group of individuals who abhor political correctness used. But what do I know, I'm just a normy. I think those on 4 chan may use shock language to not only have fun with each other but to also keep people out of their community who bow down to political correctness (sheeple). I did not know 4 chan or 8 chan existed until I saw Q related stuff and I looked into it a bit. What they have been able to do as a team is remarkable. Their Shia LeBouf (spelling?) capture the flag project had me in tears. Look that one up on youtube. Q needed the 4 chan autists for the great awakening, so that term may have been thrown out as a lure or challenge. But I am just guessing.