As with most things, this addresses symptoms and not the actual underlying problems. HFT have exposed all kinds of problems which existed since the inception o

As with most things, this addresses symptoms and not the actual underlying problems. HFT have exposed all kinds of problems which existed since the inception of the various markets but only appeared recently. For example, Regulation NMS is an important rule that was introduced to solve a major problem (ensuring price fairness in a decentralized environment) but it didn't make sense back then. However, given the physical constraints, the problems weren't apparent. Now HFT has highlighted the broken nature of the regulation. The right solution is to force a re-centralization of the exchanges, but instead of that people are pushing to stop HFT.