Well, "Stop Spammers" is great for stopping human spammers, however, the database is still incomplete! It is impossible to keep a list of spammers and their IPs and other info! It is also easy to hide their IP addresses by using an anonymous proxy! Maybe, there can me a censor to see how many links there are, compared to the unlinked words. Many spam posts are like this:
Go to Google!
Go to Google!
Go to Google!
Go to Google!
Go to Google!
Go to Google!
Go to Google!
Go to Google!
Go to Google!
Go to Google!
Go to Google!
Go to Google!
Go to Google!
Go to Google!
Go to Google!
There should be an algorithm, of the ratio of links to words. If there are too many links, the post would require moderation!