Before rushing to the courthouse to sue someone for libel or slander, there are a number of things one should consider. For one thing, even if no counterclaim is filed, filing a defamation action opens the door to all kinds of personal details about your life that you may prefer to keep private. To prevail, a plaintiff needs to prove that the defamatory statement was false. The defendant–the person who made the statement–doesn’t need to prove anything. Think about what that means as a practical matter. If someone Tweeted to a million followers that you are some kind of sexual deviant and that you had sex with a wildebeest (and assuming that the Tweet was understood and believed by readers as a literal statement and not as mere rhetorical hyperbole), and you decide to sue for defamation, you will need to prove that you did NOT actually have sex with a wildebeest. How does one prove such a thing? Well, generally by presenting evidence to the jury about what kind of sex life you DO have so that they can see that you are not the sort of person who would do such a thing. Or maybe you throw in some evidence about your documented fear of antelope. Either way, it could be embarrassing.
There’s also the libel-proof doctrine to consider. Because the tort of defamation is concerned primarily with damage caused to one’s reputation, some courts have held that when a plaintiff’s reputation is already so tarnished at the time a defamatory statement is published that it would be virtually impossible to make the reputation worse, the plaintiff will be deemed “libel proof” and the case will be dismissed prior to trial. If the defendant claims you are libel proof, think of what fun the discovery process will be for you, as the defendant goes about digging for evidence about how bad your reputation already is.