so when "plurking", are we essentially just citing and commenting on what we read throughout the semester? This reminds me somewhat of a discussion board but in a social media/direct messaging(dm) sort of format.

Yeah you got it! Kind of like discussion board but in a more abbreviated way with a more casual tone. If you feel like you dk what to say you can go back to the rubric of having posts that clarify or connect(to other readings, real life, pop culture etc).