Klint Finley writes: “Facebook has … been working with CUPS to find ways to encourage users into being more careful about what they post online. The collaboration is the result of additional CUPS research, which found that minor tweaks can help users make better privacy decisions, such as making users wait 10 seconds after writing something before they can post it, or showing them photos of five of their friends at random to remind them of who is likely to see the post.”