The issue of whether or not to bait sharks has always raised hackles, and from a tourism perspective is obviously valuable because of raised value of the resource and simple awareness.
As photographers, and more film-makers, habituated feeding behaviour is less appealing because of the lack of genuine natural action on the part of the shark.
I also think there's an element of control that needs to be applied to operators that feed too much.
It seems that most animals on the planet need to "earn" their existence these days.
If sharks can do this by fascinating people on their TVs sets rather than being served up as "flake" or fin soup then so be it. And if this is only possible by attracting them from the massive ocean realm they call home, into reach of a camera, by use of a scent, then its a small price to pay.
It's the animals well-being or survival that needs to be taken into account at the end of the day.