Choosing Condoleezza Rice for Dropbox's Board is problematic on a number of deeper levels, and invites serious concerns about Drew Houston and the senior leadership at Dropbox's commitment to freedom, openness, and ethics. When a company quite literally has access to all of your data, ethics become more than a fun thought experiment.
I'm not entirely sure if this deserves its own topic, or if this should go into the previous Mozilla / Brenden Eich topic. But for reference, the Brenden Eich topic is here, and it is about similar actions towards protesting Mozilla (Firefox specifically) over their appointment of Brenden Eich as CEO.
Condoleezza Rice was Secretary of State under Bush, and served in the National Security Counsel under Bush. Naturally, she was quite involved in the controversial Iraq War. This is the source of controversy. Like the Brenden Eich case, an internet protest has begun to mobilize against Rice. I've voiced my disdain in the Brenden Eich topic, but I can tell that this Dropbox issue is at least more relevant than the Mozilla one. If people were supportive of the Firefox protest, they'll certainly be supportive of this clearer-cut case as well.