I understand why people believe this, but strictly speaking, it isn't true. Employing someone isn't an endorsement for all their positions, and even more to the point, employing someone who was in the past affiliated with an organization isn't an endorsement of the whole organization.

Again: I wouldn't hire her, and I'm more confused by her presence on the board than anything else.

I think a board seat is rather different than employment. I am comfortable with political and "values" tests for company directors that I would consider inappropriate for an employee.

Don't get me wrong! I'm not uncomfortable with the values test here! I'm just confused as to the logic behind appointing her, and thus about what her appointment says about Dropbox.