Fan or Spam?
Find out how many of your followers are junk and then block the twerps!
TwitBlock scans your followers for signs of "spamminess" making it easy and quick to block the unscrupulous ones in one hit.
What is great about Twitblock, is unlike other apps, Twitblock ultimately puts you in charge of deciding if an account is spam. The way that Twitblock looks at the avatar is being used elsewhere is genius. This is THE BEST spam account remover out there. No causalities in the spam fight with this one.
Seemed to find the spammers pretty easily and quickly, though with each "scan," you have to manually block each spammer (you can't click on a single button to do this). I also re-scanned three or four times and kept finding more spammers. Could be better if you could do one scan and block all spammers, instead of the individual blocking and need to re-scan. But, it does its job!
Takes a few minutes but it is pretty good in identifying spammers. I'm not sure there's a lot of actual utility in identifying and blocking spammers who follow you whom you don't follow back, but reporting them is probably good for the Twitter ecosystem as a whole.
TwitBlock's a great tool for figuring out if you're being followed by spammers, and blocking them. There are a few things that would improve matters, though, such as automatically reporting spammers to @spam, as well as replacing the scores with fuzzy terms (as those scores tend to lead to a lot of confusion and anger for some).