Nothing new here. College students have been doing it for decades with amphetamines. Speed etc.
Adderall is just another type of amphetamine.
The sad thing is as the abuse of Adderall and Vyvanse (a better Adderall) become more prevalent it is harder to get a script filled for people who have ADHD.
More and more MLB players are getting exemptions so they can use Adderall for ADHD. Seems they have suddenly been diagnosed with it.