Related Clues:

• AI game participant
• Spam sender, for short
• Internet automaton
• Web-crawling app
• Many a spam creator
• Twitter spammer
• Unpaid tech worker?
• Many a Tweeter
• Automated blog participant, for short
• Net automaton
• Spam generator, briefly
• Message-spewing program
• Automated producer of spam
• Spam generator
• Nonhuman Twitter account