or to concatenate strings in a non-verbose way
UIOP:STRCAT. UIOP is present on every contemporary Lisp image as a part of ASDF.
UIOP:STRCAT. UIOP is present on every contemporary Lisp image as a part of ASDF.
But, if UIOP:STRCAT is such a "standardized" solution as you claim, then I believe it should become part of a (hypothetical updated) Standard, not a second-class citizen behind a member of the ancient aristocracy like Lord CONCATENATE.
What I mean is that I think there should be some kind of mechanism so that standardized solutions emerge (from widely used libraries for example) and become part of the Standard. Like it happily happens in many other domains.
There are people whose jobs is to work on that.
When you write "it should become part of a standard", you use the passive voice: who is going to do it?
In CL, the effort is focused on things that matter to each individual, or each company that uses it, and sometimes a (de-facto) standard library comes to life.