A few weeks ago I asked whether the “title” tag was worth the time it took to put into the a href tag. The consensus was overwhelmingly yes, not only for SEO but also for 1) the good of those who are disabled and 2) usability (gives the reader context for where the link will take them).
Now, I want to ask another question to the Performancing community:
Do you use WordPress category descriptions? If so, why? If not, why not?