I can only speak for myself. I've basically retired from fly swaps for a number of reasons. I'll enter maybe one a year.
I too was surprised at the lack of interest in your stimi swap, especially since you guys can really tie well.

I also got a bit put off by the same batch of guys filling every swap and diluting the talent pool so to speak; I'd rather get flies from a variety of people rather than the same guys each time.

all that said, I don't spend much time around here anymore and I may be mistaken.