"Person of the Year" is supposed to be for the person(s) who have done the most to influence the course of events, for better or worse, in the world. Reagan got it, Gorbachev got it, Hitler got it, Ayatollah Khomeini (granddaddy terrorist sponsor) got it, even "The Computer" got it.
The OWSers haven't influenced anyone, except for a few whiners in their parents' basements. And creating more work for the local sanitation departments.
That said, didn't they give "Person of the Year" to that guy who invented Facebook? His influence was limited to giving people some frivolous light entertainment in their spare time. So, he did something that lots of people noticed, but not anything that actually influenced events.
So, by that sentiment... the OWSers still won't get the title. Not many people have even noticed them.
"The social contract exists so that everyone doesn’t have to squat in the dust holding a spear to protect his woman and his meat all day every day. It does not exist so that the government can take your spear, your meat, and your woman because it knows better what to do with them." - Instapundit.com