How clever can people get with a set of API's, do something questionable and/or scary, and not get publicized? That's what scares me. So many open API's out the

How clever can people get with a set of API's, do something questionable and/or scary, and not get publicized? That's what scares me. So many open API's out there and clever people will keep their mash-ups confined to a closed circle audience. Makes me wonder when companies that offer open API's will be more discerning.