Mneh. I met ya halfway in a logical manner.
I did appreciate your conciliatory tone. I'm just telling you my opinion of the visibility issue, which is critical. For example, I have been playing this game since before I started posting on the Forums, and I had never heard of "custom arenas".
But anyway suppose someone makes one. On any given night, how to you inform players of its existence, and how do you tell them that someone is in there. Nobody constantly monitors 200, to say the least. I see this as being similar to Trinity TT in its later years. The thing with Trinity TT was it would be empty, someone would go there and listen for others, hearing nothing they would leave, then maybe later someone else did the same thing, etc. I did this every night Trinity was up. Rarely any critical mass, and that was in the LW MA, visible right on the front page, where most people go by default. I imagine a custom area would be much worse.
But who knows, maybe someone will try your idea anyway, and maybe I'll be wrong.
MH