I am a sophomore currently and was active pre-university on one of the daughter sites. While answering questions, I would reach upon specific research papers, paywalled. I broke through them using means that are not so legal.
My answers reflect the primary reasons and interests as to why I want to research in that specific field are on that account.
Is it advisable to refer to my StackExchange account in my cover letter?
I have cited all articles properly; however, screenshots have been posted in many answers.