Well, it's sort of an awkward way of saying that speed can have downsides.

Of course everyone likes fast search results from Google... But how about when junk marketers want to use the same global network to fill people's email inboxes with spam? Most people have a problem with that, and so there's a constant fight against allowing spammers to "send untargeted bulk messages at nearly light speed".

I guess that's one way of looking at HFT: is it like email spam in that it hides real market signals under a layer of endless automatic noise? I have no idea. Seems like an interesting question though.