There are moderation tools. I can do things like kill a story, ban a domain, ban a user, alter the score on a story, mark a story as dead, lock a story so no one else can edit it, see how many sock puppets voted for the story, edit any aspect of a story.

I modified the default source to have a concept of tags on a story because I wanted people to be able to filter stories by their areas of interest (e.g. everything Commodore 64: https://twostopbits.com/tag?q=c64). All my changes are open and here: https://github.com/jgrahamc/twostopbits