Google says it split its competition from Pwn2Own precisely because it aimed to force contestants to reveal more of mechanics of their work, a stance that ZDI counters would discourage the most innovative hackers from even displaying their exploits.
"I don't make a lot of it, " counters Mayo Clinic smoking researcher Taylor Hays (some of whose work is funded by Pfizer), although he cautions patients to avoid heavy drinking when on this or other drugs.