While that may be the philosophy of other forums and support communities (just list out every possible disorder and make a group for it, and hope people find and use it), we do things a bit differently here. We only make groups for larger categories and then, when enough people use it for some sub-topic, we will consider splitting that sub-topic off into its own forum. As it is, we have a perfectly good forum for dissociative disorders, which is in no way exclusive to DID:

Dissociative Disorders - For support of people with depersonalization & dissociative disorders (such as DID, also known as multiple personality disorder).

While DID is mentioned as one possible dissociative disorder, the forum is clearly marked and named "Dissociative Disorders," which includes them all.

All you need do is start a new thread on the topics you want to talk about, and others will find it there.

Best,
DocJohn