Let's say next week a city bans all of Darwin's books. Since MobileRead has several of them for download, does this give them the right to take over MR? Amazon also sells them, can they get them too?
Now Amazon also sells playing cards, playing cards are used when playing poker, people bet on poker, thus Amazon is encouraging gambling. The also sell a
roulette set, if this does not encourage gambling I don't know what does. Then there are the books about beating the system.