I have developed the system primarily to stop Spam to my forum and my blog. Most of the domains on the Spam list are Zlob Trojan Malware and other redirect domains. The system will not stop passive comment Spam, but that you can moderate yourself through WP comment moderation. These domains are the nasty one’s that kill your blog for Google!

I have been using the system on my blog for four months now, and it works perfectly. Still my blog does not get as many visitors as Andy’s..:) So he has more Spammers than me! But in these four months I must have only gotten 10 Spam attempts pass the PHSDL filter that I moderated via WP comment moderation module.

The system is non commercial, so you have to take it as is. I am allowing bloggers to use it for free, as long as it is for a personal blog and not a business blog. So if you are not going TechCrunch50 any time soon, you are welcome to it!

How it works? I will give you a snippet of PHP code that you will add to the top of wp-comments-post.php When comments are submitted by a commentator they will be checked against the Spam domains in PHSDL database. If there is a positive match of a domain url in the comments to PHSDL list, comments will not be added to your post and the Spammer will get a nasty Splash screen identifying that their domain is a Spam domain. I have set the script to time out, so if my server is down, for what ever reason, your blog will not be effected! The plus side of this system is that the Spammers’ domains get indexed by Google via PHSDL Hot Black List. So if one is to Google for the caught domain it will show it on the Black List!

So if you are interested in the filter please email me
admin at phsdl.net I will send you the script code with authorization password. You should backup all your WP files especially wp-comments-post.php before installing the script. Also it is not a plugin, so you may need to re-add the script to your WP after any WP version upgrade. I will not be responsible for your blog!

As Andy said, Akismet is hivethink that impedes creative communication, by having mass-community of bloggers decide if a commentator is a Spammer or not. If a comment is controversial and it is labeled as Spam by the author of a blog, and then that commentator is barred from commenting on other blogs, that is destructive not productive for the blogger’s community as a whole!

Please take a look at PHSDL website and email me if you are interested. Let’s fight Spam not commentators!

P.S. If you are a power blogger and get tons of comments that my server will need to filter, and you are using up a lot of the server’s resources, I may ask you to contribute to the maintenance of the server, depending on the server’s load with relationship to other participants of this project. The project is not for profit, so you should not worry about this!

I’m trackback spamming MYSELF, apparently. Thanks Akismit, brilliant.

I do find it really annoying that lately it seems that most comments I leave on other blogs are not appearing.

Generally speaking I am satisfied with the tool.

The idea is to combine these and that would leave akismet in the cold. I use a bayesian filter which I train to recognise two things spam and ham. A positive ham report publishes the comment while a positive spam report blocks it. A fail on both drops it through to be published leaving me to train the filter or not as need be.

Whenever I am sure that there is no spam in the comments I can train on all comments to keep the ham test up to date. Although the spammers try to trick the system by using unspammy words they still do not use words with the same frequency as in real comments and the filter is just as effective.

However with so many people submitting data for testing to akismet it is easy to introduce noise into the signal. Sadly this is part of the design.

the ideal spam stopper (like spam assassin) takes the opinion of many different tests. This would be the ideal solution to comment spam too.

Thanks for your comment! I did get it but as you suspected, I had to fish it out of the spam section. I was notified though.

Have no idea why it ended up there, but it gave an error that said somethinga bout your IP address being a problem.

I will comment soon on it!

Kenneth

It will be interesting to see how much traffic a front page for bankruptsy in google gets me for a few hours as well.