How dangerous it is, to muffle this warning, when trying to find all the free variables of a form? The library seems to be outputting the right list of free variables anyways, but still got me thinking. Here is what I am playing with: (defvar *muffle-warnings?* t) (defmacro w/muffled-warnings (expected &body body) `(handler-bind ((warning (lambda (w) (bnd1 actual (apply #'format nil (simple-condition-format-control w) (simple-condition-format-arguments w)) (when (and *muffle-warnings?* (string-starts-with-p...