I don't know what you mean by "the links don't work". They work fine. But that particular page isn't well maintained. It's true that most developers don't like to document, especially if they don't think anyone is paying attention.
The developer continues to maintain the project and is very helpful -- I've been corresponding with him most of the last week! It works with Chrome and is highly configurable. It's pretty hard to keep up with Evernote that has had millions of dollars at its disposal, but tiddlyclipper does a pretty good job.
The surprising thing is how few people seem to reference tiddlyclip. You would indeed expect it to get more notice.
There's been some light discussion regarding bookmarks. My feeling is that it's very hard to compete with the bookmarking system that's already built into your browser.
What I do for my bookmarks in TW is to set a title, tags (including 'Bookmark'), some descriptive text and a url field. Then have a bookmark viewer template that displays the link. I have this as part of a tag-tree structure of which Bookmarks are just one part. But I use a variety of technologies (esp xBrowserSync) to manage bookmarks, so I don't have everything in one basket.