Theoretically, yes. In practice, no, not anything that's likely to happen. It was initially a safeguard against automated guest searches (not nessecerially malicious; more likely search engine crawlers and the like) running up large amounts of bandwidth/resource usage costs; but since these are quite low as-is, it won't hurt to at least trial turning it off. Since I can definitely see how it'd be annoying, if any problems do occur I'll see if there's a less-intrusive solution.