HNJ
A text-only bulletin board written in PHP with caching, spam detection, banning, flood protection, multiple themes, read-only boards and support for sharing magnet links. Written for speed. Employs no external libraries nor frameworks. Ballz to the wallz.
frontpage: shows a list of all the boards rules: shows global and board specific rules support: yes. settings: gives users ability to change themes and datetime formatting.
i'm never going to look at this, or fix it, or anything. so do what you want with it.