How much first-hand experience did you have with SL?
Joined in 2003 during Beta, built, programmed, and sold stuff, worked for some small companies there, was involved in some financial aspects and palled around with finance people, and "invested" in Ginko ($250 invested, $750 withdrawn). Somewhat abandoned it since 2008, only going there maybe once a month, since it's now a resource-heavy chat room that the rest of my friends have mostly abandoned as well.
I read a little about it because of their currency. I remember the article about the first "virtual millionaire" that made many waves...someone who was buying and selling SL real estate.
Anshe Chung. Bought server space (land/islands), designed the land with various themes, resold or rented to others. Not sure if she's even involved any more.
It's been many years, but didn't they have a problem with hyperinflation at some point? Can you tell us more about how Linden Labs controlled and changed the money supply in that timeline?
When SL first started, and it cost a few $L to create an object in-world (one you can manipulate and texture to turn into items), everyone in game received a $L250 weekly stipend. This was done to limit the amount of newly created object "spam," since they did now know what their world servers could handle. Once pay-to-create was abolished, everyone still continued to receive a stipend. Eventually, with a whole lot of new accounts and no real way to destroy the money, everyone getting newly printed money every week caused said hyperinflation. Currency stayed somewhat level for a while, but then when it couldn't contain the new inflow of money, I think it went from around $L50 per $1USD to $250 per $1USD within a month or two (I made some money trading on margins during the crash). LindenLabs responded by hiring a full-time economist, and cut all the stipends for free accounts, setting them to $L50 for old accounts, and $L0 for new ones. They are also actively maintaining the exchange rate by destroying excess $L bought at their exchange.
I know that LL sold SL currency directly. Did they allow you to withdraw into USD as well? Did that ever change?
Since LindenLabs had a dream of creating something like the virtual world in SnowCrash, they initially did not want any restrictions (this only changed when enough people whined about it). As such, they were completely for unregulated exchanges. They had no problems with people trading $L back and forth, or with competing exchanges, and helped the process along by setting up the first exchange themselves. They also saw it as a source of revenue, charging a percentage on exchanges same as MtGox does (though way higher fees). As far as I know, that policy has not changed.