You'll note that the article only refers to a specific strain of the bacteria, and in addition, they only live on pure caffeine (which coffee is not).
In addition, I would imagine that in most places, ground coffee is more expensive than sugar. Finally, obtaining the specific strain of bacteria might prove difficult.
Oh and i think you have to have some sort of proof of a legitimate experiment that you're doing.Agreed; unless someone suddenly has connections to ATCC?
I think you have to show that you also have the necessary facility/equipment to treat the organism in a suitable manner (i.e. BSL level 1 would be sufficient for P. putida, I would assume).Well its not really hard to get stuff from them. they provide all the permits you need and stuff. Never personally ordered from them, but i'd imagine that its not cheap.
Oh and i think you have to have some sort of proof of a legitimate experiment that you're doing.