Earlier quoted context omitted.
Yeah, I think fees and externalities mean that speculation is a negative-sum game. I used to work for financial traders, but I quit that industry because I decided it was, however lucrative, a net societal negative.
speculating is not a net societal negative - it allows one party to trade the risk away. But of course, the same instrument can be abused by gamblers. But it's not the instrument itself that's the problem - it's that there are people gambling with money they can't lose.
I agree gamblers are also a problem, although I'm not sure it's really a distinct group from speculators. But if you look at the amount of resources spent to in effect lower insurance premiums, I think you'll find it's much larger. So yes, the lowered insurance premiums are good, but the costs are so high that on net it's negative for society.