Thanks for the feedback, nopinsight. Technically, the "filter" should get smarter based on the more activity you do (answering questions about specific locations, etc.) but yeah - calling out "here are my main areas of knowledge" somehow would clean up the list, especially as the community grows. Thanks again!
* Allow the user to customize Q&A list they see, perhaps through filtering tags.
* Indicate somehow about the number of questions still ahead. Some sort of progress bar might help. As of now, some people may not have the patience.
* Leave out some questions from the signup form. Ask them later, eg put location box at the top of the question list.
Hope this helps and congrats for the launch!