A certain portion of the internet is freaking out over a change to an important list used by ad blockers that facilitates their function. Popular coding repository GitHub received a DMCA request (the same tool copyright holders use to remove links to pirated music and movies online) to remove a domain name from the ad blocking list and consented. That set off a firestorm of speculation about copyright laws being used to prevent ad blocking. But that's not exactly what's going on here.