I have reviewed and searched, but have not found anything similar yet...
I'd like to see a personal or temporary blacklist option for webmail spamcop members. I see that there is a "Release and White List" option, but no "Report as spam and Blacklist" option.
While the spammers may be hijacking domains and piggybacking as anonymous riders on large corporate servers, so their actions are temporary - this may prevent this blacklist option - but I am getting repeated spams, esp. phishing expeditions for ebay and paypal and non-existent US bank accounts among others, using the same servers, such as Samsung.com's, that at least this will further reduce such material, until such sysops shut them down, or close those ports the spammers are using.
I'd also like to see a facility to report such activity directly to the organisation trying to shut them down, such as anti-piracy groups, reportphishing.org, and the various spoof[at]*.com who would like to hear from the community getting such material. At least the most popular/common orgs could be starters as a pilot project.
As a conscientious spamcop member, I'm pretty careful about redirecting this sort of e-crement to the right places in hopes that it will be shut down or reduced, I trust the others are too.