Kudosbait is a friendly and positive message (i.e. kudos) posted to an online community or social networking service in order to encourage people who feel flattered by them to visit their website or otherwise interact with them.
@piersmorgan: I love all American baseball teams
@redsoxfan: We love you Piers
@yankeesfan: We love you too Piers
@big_man: Don't be so foolish, he is only posting kudosbait to get you to watch his TV show!