Hi ChefSteps,
First and foremost, I am a huge fan of ChefSteps. I have been watching all the videos on Youtube, and I finally created an account here today. Thanks for everything you are doing. Your videos are incredibly educational and inspiring for people like me.
They claim to be a community for chefs (Korean community), but almost all of their post are basically your videos. Using this method, they managed to become a very popular page among Koreans (almost 150k likes), and probably has a decent potential for making profits for the page creators.
I am not entirely familiar with the laws regarding these situations, but I thought it was worth notifying you guys about it.
Looking forward to watching your future videos

Best,
Ryan