This is a well written but fairly straightforward "let co workers know I am resigning and moving on" letter. Why is this on the front page of HN? Not being sna

This is a well written but fairly straightforward "let co workers know I am resigning and moving on" letter. Why is this on the front page of HN? Not being snarky (Good Luck Sriram!), just wondering what is insightful about this post. Seems like a straightforward resignation email to me. Most of us have written similar emails in our careers. Obviously the submitter and upvoters see some value that I can't make out. Please enlighten me.