It depends of the theist. People here to preach I'd just as soon went away. Theists who are willing to engage in discussion about religion and or morality are interesting to have about and fun the argue with. I get really tired of quote miners though, and other intellectually dishonest people. Theists who spend most of their time in non-religious areas of the forum like politics, science, and humor, are just fine too.
If there is a god, I want to believe that there is a god. If there is not a god, I want to believe that there is no god.