[hardik988]

What do you mean by "may exist"?

     Failed! "asdjoiqndiqnw09d21eh09n20dnqdqddqw" may exist, try another name 

Are you using a bloom filter or something?

[netrus]

My guess would be they spread random false positives for privacy reasons?

[eksith]

Same here. For a moment, I thought my imagination was insufficient. Then I remembered I tied my imagination to /dev/random

[lambda]

Or a hash with not enough bits to avoid collisions, and no chaining.