Darren,
I'm going to make an effort to be polite because I'd rather discuss things, adult to adult, in a way that facilitates and furthers knowledge rather than in an antagonistic manner. I find your manner of posting very frustrating but if I give you the benefit of the doubt, I can assume you are concerned for the homebrewing community rather than just trolling, fishing or trying to prick balloons.
Given that you have a reasonable understanding of various microflora (considering your background) what would you estimate the likelihood of botulism toxicity occurring to be, if the no-chill process is followed properly (and by properly I mean with clean cubes, in my preference chemically sanitised)? Theoretically it is a risk yes. I concede that. Do you concede that it is a very, very small risk, unlikely to be borne out in actuality?
NB: Agreeing/conceding doesn't mean you condone the practice or need to accept responsibility if it actually occurs.