If you find yourself constantly entertaining idiotic notions about the nature of god, then it may be helpful to identify as athiest, at least for awhile. If you should ever form a reasonably well thought out concept of god, then you'll see no need to deny, or state that you remain unconvinced of gods existence, you would instead busy yourself with trying to make further improvements to your understanding of god. If you constantly find yourself busy attacking what you see as other people's ideas of god, it's because this is more comfortable for you than admitting your understanding of god could be improved upon.