Actually... the article mentioned that the scrapers also violated the T&C of the site. Without knowing the details here, it could very well be that the use of the service be limited to only people, and not robots, or other such limits (like only the person associated with a user account allowed access and sharing is not allowed). This gets even stickier since it seems like the scrapers got the accounts from a company that probably signed some form of agreement with the database company.