On July 7 2011 we announced that we were making changes to our curated plugin list to no longer include the Google Sitemap XML Generator, and to curate the plugin ‘Better WordPress Google XML Sitemaps‘. We have discussed our reasons why on our blog post regarding this topic.
We are planning to enforce this change starting Tuesday September 27th 2011. In addition to enforcing this change, we do plan to blacklist the Google Sitemap XML Generator due to the fact that it causes some dramatic performances issues for many sites and it can cause issues to the MySQL database. If there are any questions or concerns, please contact the support team.