Credit:
The fellow, who says he doesn't have any Twitter-related programming knowledge, wrote a blog post about the accidental exploit. At least one commenter said he tried to contact Twitter employees about the bug but got no response.
As most of us are now aware, a ton of other users started exploiting this bug and a few tech blogs got wind of it, as well. Twitter was working to fix the force follow bug this morning, which made it appear that all follower and following counts had been reduced to zero. This was a temporary measure; follower counts have since been restored.