[berkay]

Google does NOT only use the algorithm, and manually bans sits algorithm may have misses as it was in the case of RapGenius. I don't buy the argument that search results would be lonely, if Google somewhat punished Expedia for this, it would force them to change behavior. They would fall inline as well as others that may be using these questionable methods.

[davemel37]

His point is what proof does Google have that this was done by Expedia and not some competitor doing negative SEO?

This doesn't justify the spam, it just makes it much more difficult for Google to detect and penalize due to the mostly natural link profile that Expedia has earned legitimately by building a household brand.

If you had 99% signals saying this is a strong brand worth ranking high, or even only 85% of the signals are positive, and you have a few shady backlinks, wouldn't you give them the benefit of the doubt? Even if you wouldn't can you risk penalizing them without a smoking gun and proof of spam?

The only real question here is why Expedia even bothers with these efforts...Most big brands can get more than enough natural backlinks by launching new programs and services and having all the press pick up the story.

[searchmartin]

Thats absolutely true - Google do have the power, and often use it, to make human decisions on the quality of websites and often ban those that break they TOS. As for whether Google should take action against any particular website, its not for me to say.