All this said, you really seem to be the one to have started the flagging war with this guy. Based on the amount of posts, it doesnt seem like a "throwaway" account to me. It seems like a guy who you're attacking. Personally, i can't see anything wrong with his posts that you flagged, and you necver left an explanation.
EDIT: After checking the timeline on steemd, it appears the conflict started days ago with retributive flagging by both ezra cat several users who were going after him, including some well known ones. There was no reason i can see other than simple spite.
Apparently at some point, @ezrathecat flagged one of @fyrstikken posts. @fyrstikken reacted by flagging everything he had ever posted on the site, and apparently getting several of his friends to do the same.
IMO, this reaction is completely uncalled for, low class, and bad for the platform as a whole. @Kyle's comments in at least one of the thread were abhorrent. when you go to check the exchanges and you scratch your head and wonder why no one wants to put money in steem, this is why. Everyone involved in this debacle should be 100% ashamed of the way they conducted themselves.