To my knowledge, this is about as good as an open discussion forum among JWs is going to get, IMO.
Witnet is a straight place, there are several others, but they are even straighter. Daisies, etc. Almost every post ends with "Have a nice day[:0]" A bit much for me. Both ends of the spectrum, but no middle ground JWs seem to be representative on the web.
I've been to Support4xjws. Nice place, but I have not spoken with anyone who actual "is" a JW, which would explain the name, I suppose.
h20 is a marathon compared to this little racetrack. I think there is more freedom to speak here - but not if you're a JW and want to remain one. The tide is set, IMO, against the WTBTS.
There are several fence straddlers here, myself included, just trying to figure things out.
If you want to talk issues, Simon is researching an area where two could post, either seen or not seen by others. Sounds interesting to me.