It's actually completely necessary.
Don't like it? Don't bother, and don't act as if you know what's happening under the hood.
I didn't act in such manner? I have no idea what you're talking about with that.
Though with that kind of unnecessarily rude reply, I will gladly GTFO as you have so suggested.
The first thing you say is "It's completely unnecessary". You very much acted in such a manner, yes.