baz are instantly recognizable signifiers of example or pseudo code. Their popularity seems to be a strong indication that the programming community accepts them as a good way to indicate the author is showcasing a non-specific implementation of code. As this q+a reveals they are classified as metasyntactic variables.
While the history of these words seems to be rooted in over 50+ years of usage I can't find any resources studying their effectiveness.
Rather than take it a face value that their ubiquity is evidence for the effectiveness I'm wondering if there is evidence about the impact on linguistic comprehension.
To clarify, I know that
foo is understood as signifying pseudo-code, but I'm referring to comprehension of what the pseudo-code means.
I have re-read the FAQ many times and before I get accused of being chatty I'm not trying to elicit a discussion, I'm not looking for personal anecdotes, I'm asking a question that is relevant to the programming community at large though it's on the edge of our concerns. I realize that there may be not anything published in this area but in case there is it'd be helpful to know in either case.