On Sat, Nov 5, 2022 at 3:13 AM Richard Stallman <rms@gnu.org> wrote:

> If CL packages still have the misfeature of searching a list of
> packages for one that has a symbol 'foobar' in it, and deciding
> what `foobar' in your code means based on that,
> then they are inexcusable bad design and we must not implement them.
>
> If they no longer have that misfeature, maybe they are ok.

If you're talking about the :USE directive, you don't have to employ it:
it's not
mandatory for CL packages to be immensely better. But it's very useful  and
convenient in specific, well-understood situations.  If you're talking
about
something else, I don't know what it might me.

João