Perhaps reasonable advice. However, employees have certain rights. And concern over loss of anonymity should not deter one from making and pursuing a choice.
Section 2, Fourth of the Railway Labor Act, 45 U.S.C. Sec. 152,
Fourth, states:
"Employees shall have the right to organize and
bargain collectively through representatives of their own
choosing. . . . No carrier, its officers, or agents shall deny or in
any way question the right of its employees to join, organize, or
assist in organizing the labor organization of their choice, and it
shall be unlawful for any carrier to interfere in any way with the
organization of its employees, or to use the funds of the carrier
in maintaining or assisting or contributing to any labor organization,
labor representative, or other agency of collective bargaining,
or in performing any work therefore, or to influence or
coerce employees in an effort to induce them to join or remain
or not to join or remain members of any labor organization . . ."
This means it is illegal and a violation of federal law for any
airline or another union to interfere with or coerce its employees
in their decision to form or join a union. It's critical to
document any coercion or harassment, regardless of who is
doing it, as this is a violation of your employee rights under
the RLA.