@Lokal_Profil On a Wikipedia camp leader meetup in December, we talked about Dashboard, and a couple of privacy arguments were brought up against it. Since we sometimes use Dashboard at events, it might be something we want to look into (unless we have already).
Examples that were brought up
From the page Private information
"For logged in users: OAuth credentials that allow partial access to to your Wikimedia account, including making edits on your behalf"
"information shared with the Cloud Services Project, including usernames and passwords, will be made available to volunteer administrators and may not be treated confidentially."