Unless I'm missing something, there's no easy way to tell if you have already read a posting or not (as you could do on the defunct Forum). In other words, you cannot easily tell whether there's been new postings to a thread since the last time you looked.
If I'm right, that's a real downer. If I'm wrong about the above, please straighten me out.
But ... something's better than nothing. But I guess I'm suggesting that we should keep looking for the best alternative.
Maybe a Usenet newsgroup would be a better board -- for example, maybe alt.music.synth.technics. There's already ones there for Roland and Kurzweil.
Just an idea.
Larry