It sounds like they meant they used to work at CFAR, not that they currently do.
The interpretation of “I’m a CFAR employee commenting anonymously to avoid retribution” as “I’m not a CFAR employee, but used to be one” seems to me to be sufficiently strained and non-obvious that we should infer from the commenter’s choice not to use clearer language that they should be treated as having deliberately intended for readers to believe that they’re a current CFAR employee.
The interpretation of “I’m a CFAR employee commenting anonymously to avoid retribution” as “I’m not a CFAR employee, but used to be one” seems to me to be sufficiently strained and non-obvious that we should infer from the commenter’s choice not to use clearer language that they should be treated as having deliberately intended for readers to believe that they’re a current CFAR employee.