Recently, St. Louis Cardinals manager Tony La Russa sued Twitter for the misappropriation of his name by an anonymous account holder (the now vacant @TonyLaRussa) who had a whopping four followers.

One issue that the incident brings to mind is Web anonymity and the plethora of online trolls, squatters, and the like that reside on social sites such as Twitter and Digg. They look to defame and have "fun" at someone else's expense—anonymously.

But when does this issue become the responsibility of the platform itself? It's obvious that Twitter felt the pressure, succumbing to La Russa's suit and settling a few days after the suit was widely publicized.

Certainly Twitter understood that a long legal process would've probably cost much more than settling. More important,  though, is whether it (and other platforms) realize the need to police such accounts and keep a closer eye on them.