We have completed a complete update process on the production Usenet Search database. The new database is cleaner than before, with less spam and no duplication of .rar files that the old database had. Also the file counts (assuming you are running 6.30 or higher) are fully available in the search results.
Since everything was restarted in the process, it will take some time for queries to be fully cached so you may notice some slower search results for most of the day today. By tomorrow it should be back to full speed.
We have an enhancement for search in the wings that will be announced within the next couple of days.