To me a hypocrite is a whited sepulcher, a Pharisee, a person that does not live what they preach. So how can we know how a person lives that we cannot see? How can we call them a hypocrite if we do not see how they live, if they practice what they preach? There is no way here in a forum. The only way would be that that person contradicts himself in his writings on the forum, like say a man says women should wear dresses that cover their legs, but in another place he says it is Ok for men to wear Speedos.
I think the people who call others hypocrites here on CI are just protesting against about a more perfect, virtuous practice being proposed to them that they think is not necessary (or too difficult, or impossible) and that the person suggesting it does not practice themselves.
Perhaps they should just ask if the person proposing it actually practices it? THAT would answer both questions, that it can be done, and that the one espousing it actually has done it.