Yeah, it isn't just any list. It's a long or tedious list, especially if spoken aloud.

I don't write out a grocery litany, for example, or a to-do litany.

Nor do I think that Mudcat is likely to have a litany of members.

For fans of group designators (like a "clowder" of cats), a "litany" is now pretty much the inevitable term for a number of complaints.