Fetching the username/id of who uploaded a post with certain hashtag

[AriaShishegaran]

What comes naturally is when you fetch certain hashtags, you want to also know who has responded to that hashtag or in anyway was related to that hashtag. what is shown right now is pure set of comments pictures and their comments with that hashtag but not who has actually posted them:
instaloader "#emmawatson" --comments

POST'S CAPTION

A vontade de rir é grande, mas a de chorar é maior
~Daniel Antunes @dantunes.c🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲🌲
#Castelobruxo #Castelobruxooficial #harrypotterbrasil #hogwarts #harrypotter #harrypotterbr #Harrypotterforever #jkrowling #potterhead #emmawatson #hp
🍁🍁🍁🍁🍁🍁🍁🍁🍁🍁🍁
-Siga nossa conta reserva exclusiva: @Castelobruxoreserva 🌴🌴🌴🌴🌴🌴🌴🌴🌴🌴🌴


COMMENTS

[
    {
        "created_at": 1504990313,
        "text": "Nesse dia",
        "owner": {
            "profile_pic_url": "https://instagram.fevn1-1.fna.fbcdn.net/t51.2885-19/s150x150/21372894_1075269222608866_4733110202788741120_a.jpg",
            "username": "_itsnaah_",
            "id": "2988718154"
        },
        "id": "17875132852141642"
    },
    {
        "created_at": 1504990305,
        "text": "Eu chorei tanto",
        "owner": {
            "profile_pic_url": "https://instagram.fevn1-1.fna.fbcdn.net/t51.2885-19/s150x150/21372894_1075269222608866_4733110202788741120_a.jpg",
            "username": "_itsnaah_",
            "id": "2988718154"
        },
        "id": "17888680897073913"
    },
    {
        "created_at": 1504990248,
        "text": "Oh @jupontesp \ud83d\ude2d\ud83d\ude02",
        "owner": {
            "profile_pic_url": "https://instagram.fevn1-1.fna.fbcdn.net/t51.2885-19/s150x150/21434031_1289801374463983_3543018590913429504_a.jpg",
            "username": "clauap29",
            "id": "4284789075"
        },
        "id": "17885256886115505"
    }
]

so i know the people who have responded to the post containing the hashtag but not the people who have actually posted that hashtag.

[aandergr]

I think we need more input to further process this feature request. What would be an use case for this feature? Which problem would it solve? How would the gained information be further processed by the user?