I can think of a lot of cases where it theoretically could be a problem, but `cut -d=` is the only one I've found so far where an end user ran into trouble because of this ambiguity, and I think it's the only one for which uutils bothers implementing a workaround. That's why I give it special attention.

> You write a bit as if we disagree, but I don't see any real point of contention. :-)

The `cut -d:=` spelling solves a different problem than the one I meant (and the one you're now talking about). But we're mostly on the same page!