The top user tag pages (e.g. here) are split into Answerers and Askers and there are different scores and Q/A totals for each. Clicking on the link (question total) for either points you to a search page for the tag and user (e.g. this).
If you clicked on that link, you might (or at least I often) want to see just the questions or just the answers provided by that user. It'd be nice to tweak the pre-formed search to include
is:question as appropriate.