ID's are a combination of letters and numbers. There are 26 letters in the alphabet and 10 digits from 0-9. Not counting the difference between capital and lower case letters that means the odds of rolling a k/K is (1/36) and the same for t/T the odds for rolling an o/O/0 is them (2/36) because a zero can count as an "O" so the odds of getting a full kot should be (1/36)*(1/36)*(2/36) which is 0.000042866941015 or about a 0.0043% chance of rolling a kot ID. This should happen about every 23,328 posts and yet I can't remember seeing a kot ID in years.