Espouse your beliefs, participate in certain circles if you want, but avoid labels unless you intend to do ideological battle with other label-bearers.
A single failed prediction should revoke the label.
The ideal rational person should be pyrrhonian skeptic, or at a minimum a bayesian epistemologist.
Espouse your beliefs, participate in certain circles if you want, but avoid labels unless you intend to do ideological battle with other label-bearers.