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What have you joined? Basically, this INTERNATIONAL Forum allows you to freely interact constructively with many people on varying topics such as LDS Church news, Doctrine, the Book of Mormon, etc. However, do keep in mind that LDS Related Discussion is kept only in the LDS Deep Doctrine Board <-- start giving your input here. Of course you may also visit and participate in other Boards in the Community as well: See All Boards
Hi lifeonaplate! Here is that particular thread about Autism in Mormonism but there are topics about autism outside of Mormonism in the Psychology board but you can't talk about religion there, just on autism itself.
Oh, there is also a thread on Parenting and Mormon Disabilities.