[martinflack]

> and gave use the eql/equal/equalp/etc... hell.

You don't like those? I've always considered them a fairly elegant deconstruction of the problem domain of equality checking. DWIM languages can get very confusing when they DWIM or don't DWIM.

[a-french-anon]

Where's the elegance? Equality is well defined on everything handled by those three, since they only compare the same types without doing coercion. Plus, you can't extend these to handle user types.

Which is why https://cdr.common-lisp.dev/document/8/cleqcmp.html exists, really; all the "copy-x" would benefit from the same fix, in my opinion.