|Feature||SpamLookup Plugin||WordPress Core|
|TrackBack IP check *||Yes||No|
|Checking HTTP Headers||Yes||No|
|Hyperlink Count limits||Yes||Yes|
|Dynamic proxy checking||Yes||Yes|
|Whitelist URL checks||No||Yes|
|Whitelist Author checks||No||Yes|
* I have concerns about using this method for spam detection. There are many legitimate circumstances that will fail this test.
And of course, there are plugins for WordPress which fill in the gaps. I’d say that for MT users, this should be an excellent tool to add to your arsenal of anti-spam measures. WP users wishing to add more anti-spam features have plenty of options available.
Personally, I find that between the blacklist/graylist and the open proxy checks, WordPress catches most of the spam on its own. I’m using a couple of homegrown plugins, but don’t have so much to do with detecting spam, as with how to handle it once it’s been detected.