So, in fact, your post at #2 was not at all helpful; giving, as it did, the misleading information that it had the one meaning that you attributed to it.
Is "eloquent" a synonym of "articulate" or not?
Obviously, all synonyms have specific meaning and implications, but they are synonyms because they mean pretty much the same thing with only a tiny difference or because they converge on a same meaning.
If so, my first post includes a synonym in the description as a way of facilitating its understanding, where the two of them refer to
an effective user of language.