This is a tempest in a teapot just like those mass "Quit Facebook" protests that spring up every time the privacy settings change. The entire controversy exists because a tiny, yet incredibly vocal, minority makes a huge deal of it only to drop it the next week. And from reading write ups on freemium services, the vocal minority is also part of the non-paying majority.

Dropbox has a technically exploitable feature which they don't want passed around for file sharing purposes so they stopped their own servers from helping. Big whoop.