Many people are reducing their intake of meat, dairy, eggs and fish. But at what point are you actually a vegan. This is important since some of those end up claiming to be vegan and yet, in my book they were never vegan - even if they stopped consumption of animals entirely for some period.
Early in 2016 I went whole food plant based for health reasons, and have never looked back. I called it vegan as a shorthand that people would understand. But it wasn't actually vegan. It was only around six months later after I started watching vegan documentaries such as Cowspiracy, Land of Hope and Glory, Earthlings and Dominion that I began to be truly a vegan.
You see a true vegan has one aim - and that is to reduce harm to animals. In that sentence there is no mention of food choices and indeed healthy food choices.
Being a vegan is about being motivated to help animals. Nothing else. Being vegan is about what you leave off your plate. It is not about how you eat a healthy lifestyle. After all "living" on oreos would be a vegan lifestyle, but only if you adopt that for the animals should you be able to call yourself a vegan.
So these people who claim to have been vegan and then posted a video "I am no longer vegan" were never vegan, because once you "get" the animal horrors that man does to animals, then there is no turning back.
I am active on twitter, and every day I see five or so people asking for help going vegan after watching the Game Changers documentary. But actually these people are not vegan for the animals, not yet.