I never understood that thing myself. You can own property, make things to sell, talk to people. You can do those things pretty easily in the real world! I read an article interviewing a young woman claiming to earn her living as a Second Life prostitute charging 500 Linden dollars for thirty minutes. Setting aside the absurdity of virtual prostitution, that's about $4 US per hour if she stays fully, um, engaged. I think Second Life must eat your math and/or logic skills.
Just for grins and giggles, anybody coined "LindeNazi" yet?