Library Catalogs Should Be Like WordPress

Library catalogs should be be like WordPress. That is, every entry should support comments, trackbacks, and pingbacks. Every record should have a permalink. Content should be tag-able. The look should be easily customizable with themes. Everything should be available via RSS or Atom. It should be extendable with a rich plugin API. And when that fails, it would be nice if it were all written in a convenient language like PHP so we can hack it ourselves.