As Kobuk has already mentioned, we have a number of forum sections in which threads on the subject of autism could be made. Depending on the nature of the thread, sections such as General Non-Furry Discussion, Furry Connections and Contacts, and Life Problems & Help are potentially suitable (note that while the latter two are private to registered forum members, the former is publicly viewable, and may consequently be viewed by web crawlers and archivers). In fact, we have periodically had
threads on that subject, though I don't believe there are currently any that are within our gravedigging limits; you're more than welcome to create a new such thread yourself.
While there's the initial impression that creating a forum section will generate more traffic on a subject, it generally doesn't work that way in practice (we've had
a number of forum sections that have been archived because they haven't seen enough use to justify keeping them open). Rather, forum sections are generally created when there's a volume of related content in order to both organize it and separate it from other subjects (this most recently happened with the creation of
the MLP section, for instance). The General Furry and Non-Furry Discussion sections are used as catchalls for low volume discussion topics because having a dedicated section for a wide variety of subject matters would cause the forums to be filled with sections that are almost never used. I hope this explanation helps to make the reasoning of not having your proposed section more clear.