Vines, I need your help.

[vines]

Pronoun: The part of speech that substitutes for nouns or noun phrases and designates persons or things asked for, previously specified, or understood from the context.

Proper noun:A noun belonging to the class of words used as names for unique individuals, events, or places.

Proper nouns: Jack gave a Mercedes to Jill.
Pronouns: He gave it to her.

Pronoun: substitutes or modifies a noun, phrase, or pronoun.

In your example of a proper noun: Jake gave a Mercedes to Jill. The word "Jack" will always be a pronoun because it replaces the pronoun "He". When we talk about Jack we don't need to use the pronoun "He". It is understood that "he" is Jack without saying that because the word "Jack" narully replaces the word "he". So if a word modifies or replaces another word it becomes a pronoun.

Let me use your example. Jack gave a Mercedes to Jill. The word Jack is replacing the word "he". The word "Mercedes" is replacing the word "car". The word "Jill" is replacing the word "she".

There is no need for the term "proper noun".
One just needs to remember if a pronoun specifies the noun or pronoun it replacing then it must be capitalized. As for the other stuff you said it is off topic.

This guy was just trying to sound smart rather than be smart.

Edit: A noun is a person, place, thing, or idea. Example of a noun that is an idea--government. An example of a pronoun of the noun "government" is Democracy. Democracy specifies the noun "government" so it should be capitalized. Democracy is an idea(s) that people use to form government.

Another noun that is under the idea category is the word "strategy". Strategy is an idea or set of ideas and the execution of those ideas. A pronoun of the noun "strategy" would be Vines Strategy. It is a specific type of strategy so it needs to be capitalized and because the term "Vines Strategy" is a phrase-pronoun one should capitalize the whole phrase.