The fact that English is incredibly sloppy with words, is no reason that tp has to be. As the General Semanticists say "The word is not the thing" and so a word for a word should be different from a word for a thing. Notice what you say "Couch and sofa are interchangeable words", but couch and sofa are types of furniture, not words at all. If you want to talk about a thing, you need to use a word for that thing and, if that thing happens to be a word, then you need to use a word for that word. Otherwise you are constantly generating muddles. The fact that people are often not muddled is thanks to the human innate ability to sort through a range of possible screw-ups and find one that makes sense of the gibberish just produced. It is a matter of simple conversational cooperation to avoid screw-ups when possible. So, if you want to talk about a word, use a name of that word. The easiest one in writing is created by putting quotes around the word itself. So, say ""couch" and "sofa' are interchangeable words", which is true and nonconfusings. While you are at it, try to avoid scare quotes, which just add another layer of muddlement (or use different quotes for them, since they are useful sometimes). What is the point of the quotes around "me", since presumably what you want to refer to is really you, not even some ironic sense?
A name is a conventional identifier.
A name usually has a mass of convention going with it, so it is more than just a lable. However, that is not always the case.
You can use another word for a thing, but, if you goo outside the conventions, you may not be understood.
Yes it is really you called by "me" and "I', when you use them.
You got stuck with it by some convention, possibly only your own choice.
The name does not make a beast of Alfred (whose name needs a lead-in generic noun, say, 'soweli')
And the beasts name is not Alfred either (or, it may be, of course, since quotation names are not the only sort of names words can have, but then we still don't know what to call the beast).
Yes, the dog says 'mi soweli Alfred' (though "Alfred" is not a tp name, 'Ape' maybe). For further confusion, since 'jan' means "person" as well as "human" and persons are defined as speakers and lovers in tp, a speaking dog in love could perfectly well say 'mi jan Ape'. She can probably notice that you are a dog person.