Thanks for sharing your research, Iwona. This seems like the goal sought in our field for a long time. There seems to me some tension between the once idea that the answer was large repositories full of learning content with robust metadata versus the idea of a large public commons where it was shared freely but managed/sustained by the creators. That is what allows educators like David Buck to tap into TED content.
I think we are going to be somewhere in between for a while, but I am often wrong. It would take a rather complex system used widely to create that feedback from users of content to creators.
I do not know of specific means to contact instructional designers in higher ed. There are likely some emailing lists and conferences largely attended, maybe it’s a reach out on social media. I can think of a few I could maybe put you in touch with, and then maybe they have suggestions.
I can also think of @EricaHargreave who is here on OEG Connect and presented on similar concepts at the OEG 2020 conference. She is very keen on this dynamic of building connections between users and creators of content.
Please keep us posted here on your progress, ask more questions, there are more people just starting to join this space