My Debian QA page shows what I consider to be a huge amount of packages — I am currently uploader for 207 packages. Why so many? There are many factors — The main one is group maintenance (I'm directly responsible only for 19; of course, this should not mean I disregard the rest of them), the second one is regularity. By far, most of my source packages (177) match lib.*perl, followed by lib.*ruby with 20.