that's a common problem I've been noticing lately. People can't take the blame when they made a mistake. It's whether they blame someone else or they divert the subject. It's so hard to apologize or say "yes, I did it" and then move on.
Being an observant in this web-publishing business for a short while, and speaking only from limited experience, I've witnessed some unfavorable twitter posts in regards to content and how an editorial team treats them. They look into the problem and validate, devise a response through consensus that they deem adequate and one person on the team reaches out and tries to make right.
In Zee's case, it appears that he decided that he "had this one" and went the bully route. That's too bad because since he picked such a great Twitter handle, this clown is going to be hard to forget.