However, shaming these guys on social networks is a big no-no. This guy should have went to a judge so that they could talk and educate the concerned people, rather than taking pictures without their consent and posting them online. For this reason, WotC banned this guy from official tournaments for something like a year.
The Magic community (especially the pro community) has a sad habit to publish everything on social networks, even when it should remain out-of-sight (in the past month, two other 'scandals' like this happened, which clearly show that we have something to work on).