I tried a GNUSocial site and got nothing but spammers and hackers uploading photos to my site. I ran out of disk space, and had to shut it down. Moderation of s

I tried a GNUSocial site and got nothing but spammers and hackers uploading photos to my site. I ran out of disk space, and had to shut it down. Moderation of such a site with just one person is a nightmare.