I always thought operating this kind of service would not work, but it seems like there are enough people out there who just can't wait to make a few BTC/USD from... well... nothing? oO
welcome to what we do! do you never question the ethics of playing with money to make yourself money at other people's expense?
you are providing no service. I have worked many jobs, and while day trading (crypto or otherwise) may be one of the more profitable, it is not one that I feel good about morally.
when you fix a man's roof, you can feel satisfied knowing you have provided a service. speculating on currency, or potatos, or virtual potatos, or whatever, is just bullshit in any form. to differentiate between one form or another as more or less crude is a bit... tunnelvision.
Who is speculating on currencies? In case you meant me: I just mine, I don't trade (except BTC->EUR when they are worth more than what I invested energy-wise).
What I meant with "service" is offering a website to speculate on virtual potatos based on a ponzi scheme. Unlike a bitcoin (which value could be determined by the effort, that is by the time and energy used to produce it), there is no economic value associated with some dataset (if you think otherwise, I can sell you a script to create a lot of datasets in very low time!).