Every month the economy is impacted by the report of the number of jobs in the United States. Having access to information about the "jobs report" would allow someone to reap huge financial benefits.
Now consider this from the perspective of the Bureau of Labor (the publisher of the report). They need to publish the numbers at an exact time. They need to be sure that anyone has access to the numbers at the appointed time and that no one has access to the numbers ahead of that appointed time.
Given that the numbers are published on the web, it is a bit complicated to be sure that the numbers are published at – and not accessible until – that appointed time. This podcast talks about a case where someone found the numbers on the website ahead of time and was able to use those numbers to their advantage.
Does this constitute business logic abuse? Going to a link seems like a legitimate use of a website, so I would claim this is use of the legitimate business logic for illicit gain.