someone might have never heard of anything of the sort
someone might be interested to see lispers present a use case where they care about reaching down to the finer points of memory allocation in a language that typically benefits from being above that; see also the wealth of info on the garbage collector in the ocaml documentation
the number of users on this website who might get some sort of kick out of this link is nonzero which is the generally agreed-upon criterion for being worth posting