You never know, when you look at our current list of forums, even the specific plant ones, all seem to be pretty current with comments. Not everything has to be super active and be on the top of the list. And I believe if one forum remains relatively inactive for any length of time, it gets deleted.
Personally, I think it would still fit nicely in the current Cactus & Tender Succulents forum. If you scroll through past threads, there have been several started over the years.