Many of my friends and family on Facebook don't realize that if they comment on a public group posting then their comment is surfaced to all their friends. I kn

Many of my friends and family on Facebook don't realize that if they comment on a public group posting then their comment is surfaced to all their friends. I know this because they often reveal political, religious or sexual ideas that they are not in the habit of broadcasting to their friends. "Privacy Zuckering" is an awkward term for this, but it'll do for now.