The problem is not the people who don't know what AES/DES is, they will never tell you they looked at the code and it looked good. You are worried about the peo

The problem is not the people who don't know what AES/DES is, they will never tell you they looked at the code and it looked good. You are worried about the people who do (from say reading Applied Cryptography or doing the Matasano challenges) and think that qualifies them to do crypto or audit to against malicious backdoors. You are worried about people who, for example, think LFRS are a safe random number generator for CBC mode IVs.