Are the webspam reports read by anyone?

Matt's answer:

Matt Cutts: Here’s a question from Bilgehan in Istanbul. ‘Does anyone at Google read web spam reporting messages?’ And the answer is ‘yes’ – there are quite a few people who read quite a few of the web spam reporting messages. We do have to prioritize them so we try to look at the things that we think will have the highest impact in terms of effect on users. But we look at a large fraction of those spam reports. The same person had been asking about Turkish spam and spam reports in other languages and spam fighting in other languages. And we do have a large team of people in addition to a lot of different algorithmic detection, so that we try to catch not just web spam in English but we try to catch it in a lot of languages including Turkish, including all sorts of other languages as well. So we take it very seriously. We want to return the highest quality websites and the best results that we can in every language. Some languages have more link spam. Some languages have a lot of different types of different sorts of spam. But we take all of it seriously. And we try to stop as much of it as we can in all the different languages that we typically handle.

by Matt Cutts - Google's Head of Search Quality Team

Original video: