Please don’t invite me to join your "Stop violence against stray cats in Afghanistan" Facebook group. What, like some senator/Prime minister/mayor will see those 26 members (including your mom) and say, "Well, they were passionate enough to click a button while waiting for porn to download. I better get on this issue right away!"
Stop using social networks for your lazy, ineffective, faux activism. Just enjoy Facebook for its original purpose: stalking all your exes.