The DND community recently won a large battle against WOTC over the proposed open gaming license changes. Fans saw wizards taking away some of the freedom that made DND great and decided they wouldn't put up with it.
Huge numbers of people cancelled their subscriptions and paizo, DND's biggest competitor announced that they sold 6 months volume in 2 weeks after they announced their own open license as a replacement to the OGL.
All of this culminated in wizards backing off the updated license, and actually publishing the DND 5.1 SRD under creative commons 4.0.
I reckon wizards will try again with the next edition and their virtual table top, but for now the DND fans have proven they can get wizards to bend under enough pressure.