The Digital Portastudio forum has 1,471 topics with 10,299 posts. That forum is for the 2488 (however many versions of that device there are, I do not know), the DP-24/SD and the DP-32/SD. Without considering the other versions of 2488 models, that forum covers at least 5 different device models.
The Model 24/16/12 forum has 527 topics and 3761 posts and covers 3 device models.
It does not seem sensible to separate the Model 12 as there are not that many overall topics in the forum and the Search function works very well. And, let's face facts - nearly all new users sign up and post a problem right away and don't really look to see if there is a solution. So if they are not reading the forum anyway, it makes no sense to me to invest the time/energy to move all of those topics into a separate forum just for the Model 12. It would have at most, a few hundred topics if that.
One problem with forum management is that you can make things too granular, where users have to jump across forums when browsing similar information. Not to mention that the more forums there are, the more confusion there will be with regard to
where to post something. Not that people are doing anything wrong but it may be unclear where to post about an issue that may concern multiple models. While the Model 12 is digital and the only device that can act as a DAW controller, it is my view that it's not sufficiently different (or, frankly important) enough from the other devices in the Model series to warrant it's own forum.
I however, am not the one to make that decision. Anyone may DM the forum administrator and make such a request. If he agrees then the moderators will implement his decision.
@dctdct's suggestion of modifying the "Read Me First" post is a good one and easily doable.
@Mark Richards has volunteered to make the necessary modification to that post. This can be done immediately. It would take considerable time but more work could be done on the Index to make it easier to browse for topics.