[gnaritas]

The risk is the same risk any other trader takes, they predict price will go one direction based on data they've seen elsewhere and it turns out they're wrong, or the misjudged the volume. HFT is not risk free, you're claiming it is is simply not based in reality, ask any of the many HFT firms that have gone bankrupt how risky HFT is. Claiming someone is trading risk free is essentially accusing them of a crime, where's your evidence to back up this slander?

Once again, you've ignored my question, you still cant' explain what HFT's are doing wrong. It doesn't matter that some people don't like them when those people can't even rationally explain why they don't like them. You still can't explain why you don't like them without falling back on false facts and I've asked many times.