Do as you are doing. If there's enough interest the managers may open another section for it. When I first started on here TT got mentioned but didn't have a following so it doesn't stay. I used it in (cars and people) architectural modeling and in model trains it's used in Europe. But not here.
I thought the same thing, when I saw the title. On a serious note, the T Gauge forum could work, but it too began with member interest, and it has its own forum now.
Apparently ZZ scale is Big In Japan (another music reference ). I think one could put a loop of ZZ Track on Billy F Gibbons' hat.
WHAT?? The HOLY GRAIL!!!! I have been looking for some Z Scale LIVE STEAM for a long time now. You say this stuff is the big time in JAPAN? Maybe a weekend trip to JAPAN is in order. Maybe stop by KATO, and bug them about releasing a C&O T-1 2-10-4........... Wait a minute I hear a PIG flying by!
