Because she is a godless witch who wants to pull people from the faith.
True...kind of.
You aren't one of those who thinks she is just "wrong" are you?
Not exactly.
You think she has an aptitude problem and is an idiot?
One of her personae, yes. It's demented.
I don't. She knows what she is doing.
That's the problem. Which "Meshak" do you mean?
I don't think v.1 is deliberate because she doesn't seem capable of thinking on
that high a level. V.1 is pretty much an idiot, by choice: stubborn, closed-minded, uninterested in real conversation, initally flattering but invariably treacherous. A hater of God and Christ who wants Them to accept her on her terms. A literal heathen.
Meshak v.2 - the person who occasionally posts for her - is different. More detached, more rational, less emotional, more engaging and far better vocab than the original. V.2 seems to exist only to give v.1 a break every now and then, or to extricate v.1 out of a jam. V.2 doesn't get very deeply involved (whereas v.1 is incapable of doing so) and never stays around long.
Point is, I'm still convinced there's a lot more going on with "Meshak" than we'll likely ever know. Whatever else she/they are, Meshak is a fool who wants to pull people
to Meshak. Reason? Because she has no one in real life, is my guess.
I just don't think she has the wits to be as deliberate about it as you say. You give her too much credit for that.
But she's still evil and to be opposed as such.