Andy Wingo, a JavaScript and Guile Scheme blogger writes this insightful comment
There is very little in the way of correct, current, and universal folk wisdom as to how to implement a programming language. Compiler hackers are priests of their languages, yes, but their temples are in reality more or less isolated cults, in which the values of one’s Gods may be unknown or abhorrent to those of others. Witness the attention paid to loop optimizations in some languages, compared to garbage collection in others, or closures in still others.
The personal case he encounters and writes up here is interesting as well — I’d recommend it to language designers and implementers.