Also, lousy controls and movement that made you feel like a duck - you were either flying or waddling. Then there were the boxy internal environments that emphasized the early-FPS visuals.

Really, 90% of what I saw in Second Life was more easily and better done in City of Heroes, including character design - and you didn't have to pay extra real cash to get decent clothes.

More fundamentally, though, when people were being social in SL, they were standing around and chatting. It doesn't take all the rest to accomplish that.