Strange.

[Jan Oh]

No one ever says they failed. Either the exam is really easy, or this board is only for passes.

[Paul Clapham]

There's no rule against coming here and reporting that you failed an exam. I leave it to you to consider why people are not doing that in large numbers. Your hypothesis that the exams are very easy is one possibility, but there are more obvious possibilities. Remember that it isn't compulsory to post your results here.

[arulk pillai]

It could also mean that the training materials and the mock exams are of good quality.