A wrapper of the default 'wp_list_categories' to present an author's menu, when in the author pages.
Numerous people are using WordPress for blogging and in many cases there are more than one authors on a website. It's uncomfortably surprising that WordPress doesn't support out of the box a category menu for each author separately.
I was looking for this feature online for my personal need but couldn't find it on any plugin. To be exact I was using a modified version of another similar plugin but that was until version 2.3 where the database structure changed for WordPress and it simply stopped working.
As I saw it, it wasn't worth fixing old, deprecated (and highly cluttered) code, and there weren't any other solutions out there, so I decided to create a new plugin. Thankfully the new database and API made it as easy as I had hoped for.
I ended up with this plugin, that was created as a wrapper of the default category menu.
It is lightweight and can easily plug-in, plug-out. Furthermore, being an extension of the default category menu, means that none of the functionality (sorting, post count etc.) is lost. In fact it can be easily extended and could support future versions of the blogging platform for years to come.