Bitcoin doesn't offer chargebacks though, and nor do any of the exchanges. I think GP's point is that Linden money is equivalent to BTC, just centralized. And they can send small amounts of money.

If you mean Linden would have issues with chargebacks for people exchanging real money -- why wouldn't any BTC exchange have the same problem? It seems unlikely you'll be able to buy $0.01 of BTC.

In fact, any centralize system that throws out chargebacks should have zero problems scaling. A few years ago VISA said their target was around 50K tx/sec peak (though their daily peak is only a few thousand). It'd be slightly odd for a centralized system to not be able to easily scale to that volume.

Forgive me if I'm misunderstanding the thread.