[larrythedog]

Traders arguably add value by adding liquidity and assisting with price discovery. Arbitrageurs do the latter by definition.

Though, these are fairly complex financial concepts, so it's easy for people to jump to the conclusion that large swaths of the financial industry are worthless. (Of course, some are, but many are not)

[hyperpape]

Is there some reason domain squatters don't help in price discovery? Seems like there are some analogies between the two cases. Or is that what you're actually saying?