It seems like a bit of a grey area - I don't know how to classify a "self-proclaimed aficionado" -- is that someone that really knows wine, or just a wine enthu

It seems like a bit of a grey area - I don't know how to classify a "self-proclaimed aficionado" -- is that someone that really knows wine, or just a wine enthusiast that knows less than they think? (as opposed to a professional sommelier who has had professional training and certification, or at least proven experience)