Pyblosxom
There’s a derivative of blosxom called pyblosxom. It’s a derivative in the sense that it shares the same on-disk structure, but it’s written in Python instead of perl, and sacrifices blosxom’s wonderful simplicity for the ability to do various extensions. One of the cool things this means is that it supports comments. It also lets you do incredibly irritating things like highlight the search term you entered into google to get to the page. I think the complexity kills it for me: dealing with multiple script files, and having so much more code (the entirety of blosxom is shorter, if more complicated, than just the code pyblosxom uses to handle comments) is more complexity than it’s worth for me.