I hate this too, but it gives me something to remind students about. Mine are ESL speakers and often don't take time to read the consequences of the buttons they click.
I agree it is very annoying when they try o force you to invite friends to applications to see "results". I also hate the amount of rubbish that is flying round facebook in the form of chain mail, promising some miraculous results when a message is posted to 20 friends and some random button is pressed. So many of my friends fall for this leaving me with numerous daily wall postings to delete!