Also if you run into issues like this please make sure to send to firstname.lastname@example.org so we're sure to know about them as well.
The short version is, we'd like to release it and hope to do so again someday.
The issues that make that hard now are we used to maintain multiple sites & themes running Slash. Over time we stopped maintaining & updating the code on those sites (Slashcode.com, and use.perl.org) so some parts of the code have now become a little too Slashdot-specific from a theming and code perspective, making it harder for Slash to be useful as a general product.
Given time we'd like to clean that up, and make the code accessible and useful to everyone again, however finding the time to devote to clean-up and segmentation of the code so far has been difficult. We still hope to see that happen someday in the future though.
All science is either physics or stamp collecting. -- Ernest Rutherford