Me quedo con este parrafo

If it’s not illegal, is what Bing may be doing unfair, somehow cheating at the search game?

On the one hand, you could say it’s incredibly clever. Why not mine what people are selecting as the top results on Google as a signal? It’s kind of smart. Indeed, I’m pretty sure we’ve had various small services in the past that have offered for people to bookmark their top choices from various search engines.

Google doesn’t see it as clever.