What I love about poetry is that it can tell a complete story in just a few lines. It is amazing to be able to receive a full story in a few short stanzas and walk away shaking your head, or wiping your eyes.
Poetry and being a poet is so subjective it is hard to answer what it means to become a poet. If a person loves the genre, puts down on paper what it is they want to convey, rereads it and feels their story is there in front of them - then I would say they are poets.
Being a poet, for me, is not about recognition from others but rather recognition in your own eyes that you have accomplished what you have set out to do; relay a story, or a piece of a story that moves the reader--even if the writer is the only reader that poem ever has.