There are some issues to troubleshoot apparently. For one, the chatbot sometimes seizes on a false positive, firing off an argument to someone who is simply commenting on the weather. Part of this problem: sarcasm. When climate change believers post something clever but facetious AI_AGW sometimes reads it as serious climate change denialism and leaps into the fray. Leck does his best to apologize when the 'bot picks a fight with someone who didn't ask for it, but it's nothing a sarcasm recognition algorithm can't fix.