That's pretty imaginative, but I doubt it's even remotely true. Mary Schapiro seems to be targeting quote stuffing; see, e.g.: http://www.nanex.net/aqck/2816.HTML If you're spamming orders in with a really bad fill rate (whatever that is -- there's lots of subjectivity there), then you're self-identifying as being part of the problem, and maybe you should quit blaming Goldman Sachs (as easy as it is to do) to divert blame from your own abuse of the quote infrastructure. As long as you're directing your own orders (properly), the only one who's in a good position to "front run" you is your own broker. And they'd probably be pretty foolish to do so.
If someone knew for a fact that their orders were being front run, then they could consistently make money spoofing and picking off whomever was front running them. It's called "flipping" the market. Ever heard of Paul Rotter ?