WordPress comment spam stopper plugin

Recently I’ve got a fairly good amount of spam from my comments and it takes some serious time to moderate all this so..

. I am currently working on a plugin for WordPress for stopping spam in comments.

This is achieved by having a “security image” with random text for the writer to enter. I’m sure you all have seen this concept in forums and registration forms on the web . However I haven’t seen a good plugin for this so I’ll give it a shot.

Update 1: I have made this plugin usable but the installation is a pain in the butt. Right now it involves editing WP-files and that’s not desirable

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. I will continue and try to find a better way.

Update 2: I was told at the WordPress support forum that there already exists numerous plugins of this kind, so I’ll just give it up