On average you want to be called as you have say 99+ AQ (and bounty hand) in that range so you don't want to strengthen their calling range by showing and suggesting you're only doing it with AA and bounty hand
The way the game plays there I'm pretty sure if I go almost all in the others will see the chance of me having any hand other than the bounty hand as almost non-existent - the first time I did it anyway!
I guess you're right though that if I don't get called, and I muck, then my range opens for if I do it again in the future. I think that will give me a good chance of doing it again with Aces and getting called, but I'd be better off not doing it if I got the bounty hand and then lucky's suggested play would be better.
Although, saying that, if I do it with Aces and they see it, especially if I do it more than once, that could increase the chances of them all folding if I do it with the bounty hand!