It really depends on the subject area of the code in specific. “Mistake” is a very broad term, in most cases when it’s used it’s not the implication that the wr

It really depends on the subject area of the code in specific. “Mistake” is a very broad term, in most cases when it’s used it’s not the implication that the writer didn’t know what they were doing, rather they wrote erroneous code—which ultimately everyone does at some point. What it is however indicative of, is a lack of thorough testing and review that could have potentially caught the error. Obscure errors in places such as parsers, rendering logic, complex algorithms, memory management, etc. are particularly tough areas because building a good exhaustive testing workflow can be a challenge. Even a good writer will make mistakes, otherwise we wouldn’t need proofreaders.