...users can now check their own spam email lists as well. We estimate that we have reduced the amount of time spent on managingspam by around 95 percent, which removes a significant burden from the IT team. We also have greater control over the...
http://www.securitypark.co.uk/security_article263193.html
...submitted under Webmaster Tools. Also I imagine Google prefers spam reports consolidated into one channel instead of managingspam reports submitted in 3+ places - monitoring of @reply streams since ignoring them completely would make Google...
http://sphinn.com/story/111515