Correct, basically Project Honey Pot has two main features.
The first are the actual honey pots that people can setup, or QuickLinks that people link to. The links are generated in invisible divs and via comments etc. There are multiple ways to display the links, I just chose a div of 0x0 to be hidden. But the bots look at the code backend so when they follow the link they are given a bunch of fake email addresses etc (among other things) that they happily spam away at and get marked as being suspicious/spammer/harvester etc.
The second major part of the interface is the actual HTTP Blacklist they maintain. It's done via a DNS query, and then it sends a response based on the information PHP has stored in their databases. It stores the # of days since last "bad event", a threat rating based on # of spam messages, and the type of threat. All of this stored in a 4 octet IP result based on the initial DNS query. Quite ingenious and in use already among many email servers now. So Project Honey Pot decided to create a HTTP version that functions similarly.
And through use of their API I was able to create a simple plug-in for the zenphoto community. What the plugin does is the DNS query, and based on A) the response and B) the options the users sets up, it will either direct the spam bot to a honeypot, or will just kill connection saving bandwidth and time.
And more than happy to contribute when the time and inspiration strike me