AdGrok's seen this a number of times:

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USA (Philadelphia,PA) #4859: wow

USA (Philadelphia,PA) #4859: so you are not a bot?

Matthew: Only on the dance floor, man.

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USA (New York,NY) #664: haha never chatted on olark, this is fun

antonio: yeah, it's quite the app

USA (New York,NY) #664: didn't think there would be ppl behind it

USA (New York,NY) #664: :)

antonio: there isn't, this is a robot

antonio: :p

USA (New York,NY) #664: hahahah

USA (New York,NY) #664: ok

USA (New York,NY) #664: am very happy if robots are this intelligent

antonio: well, intelligent-seeming...