The thought of Orlanthi priests intentionally causing people to become broo is just extraordinarily bizzare. Anyway, here's Greg saying explicitly that certain acts inherently carry a risk of getting a chaos taint:
http://www.glorantha.com/new/q-and-a/chaos_taint.html
I think is up for debate is what other factors might affect the level of risk and to what extent if intentionality plays a part, e.g. regarding Troll funerary rites in which since the deceased troll was not killed for the purpose of providing a meal it's apparently ok.
I don't think it's a simple as "I didn't know I was eating a pie made from my wife, so that makes it ok", but it's my opinion that it is sometimes possible to manage the risks of invoking chaos. It looks a lot to me like the Maran Gor priestesses and the Cannibal Cult know how to do what they do without running the same risks as your man on the street would doing the same thing. I don't think they can completely eliminate the risks though. They are still doing something extremely dangerous and it's quite possible for it all to go horribly wrong.
Simon Hibbs
>
> On 11/27/2011 11:13 PM, Nick Eden wrote:
> > Though I remember it being said that committing the act of rape could turn
> > you into a broo, so at the very least there are rituals one can commit
> > without being aware of it.
>
> We are not given an example of a rapist turning into a Broo or how a
> rapist would turn into a Broo so it's not a refutation of my theory of
> chaotic damnation through magic and bad works. I'm inclined (at least
> for the Orlanthi) to think the transformation is a curse invoked by the
> Orlanthi Priests as they already have a mythic justification for it
> (King of Sartar p77). They prefer to send the Babeestor Gori nowadays
> because turning someone into a broo is a bit too close to chaos for
> their liking.
>
> --Peter Metcalfe
>