ydnar just gave Domainr a bit more sauce—its search results now output in Atom and RSS (example).
Why? Good question. The answer’s probably somewhere between, “Why not?” and, “Django made it too easy not to.”
While we’re unsure of the actual usefulness of feeds in Domainr, we’re hoping they'll prove interesting and/or worthwhile in unforeseen ways. For example, you could toss a Domainr feed into Pipes or Google’s Feed API and mix it up with other data.
If you cook something up with Domainr’s feeds, leave a comment and let us know about it!