the point is that nothing is spawning there.. so emptying bounty pot is not the solution on its own.
i'm not making a case for or against tmp.
Yes, I see that now. My point is, you don't actually know if anything is spawning there, or why.
But you are right - IMO, there are too many advies right now, and so they are hunting out areas whether or not there is a bounty set. So as I said before, you'll need to discourage them through whatever means.
Assuming your Leadership is so pathetic that the only thing they can think of to counter TMP is hunt monsters in their own borders.