Take into account how people think and act. People who are going to going after it and get nothing are GOING to complain, while those who do will probably keep the info secret to not let anyone else know that they have this new potential. If the cases aren't documented, there's obviously not gonna be any info asking about it. I'd assume those at level 4 would, at the very least, not be blatant braggarts so others can catch up to them and all that. Again.