I mostly referred to it as a "crappy Windows character set" because A) it has a limited set of characters, mostly Western European, and B) it's pretty much only used by Windows these days. While the term "crappy Windows character set" is not perhaps entirely accurate, it is a short, tongue in cheek summary of ISO-8859-1.
(Apparently you weren’t thankful enough to upvote. EDIT: never mind, I must have been mistaken.)
A more accurate description of ISO-8859-1 would be “a crappy 8-bit character set mostly only still relevant for Windows which uses its own embraced and extended version, CP1252.”
I've changed the wording to be slightly less ambiguous. Thanks again :)