Today GeoNet came under a pretty big spam attack. You may have seen an increase in your notifications based upon the spaces you are following. We have been working diligently to bring the situation under control, and are continuing to clean up the spam content and accounts within the community. Although it is difficult to prevent all spam, we are working to adjust our system accordingly in order to provide the best community experience. We appreciate your patience as we continue to combat this issue. Thanks!
Enterprise Community Manager