Emily it’s so obvious he edited the post! In your initial article I can see his first response was:

Upon beating myself up for reading your dribble…

which once the post is clicked, changes to a more toned-down response.

Medium has this thing where even after you edit a post, if it’s been shared, the first few words on the embed don’t change from what you originally wrote.

How cowardly of him to bully with such nasty words, only to change them later, before finally deleting the post. It makes it worse that he has trolled serially.