[Miss Marple]

Well, you know, I don't set myself up as the arbiter of grammar. As a matter of fact, if I were going to be the arbiter of anything, it would be to that of courtesy and a bit of KINDNESS.

But I won't be doing that, so you can relax and get back to your usual self.

[lewislynn]

As a matter of fact, if I were going to be the arbiter of anything, it would be to that of courtesy and a bit of KINDNESS.

To be an arbiter you would have to think of yourself as an expert in courtesy and kindness. I would hope an expert on courtesy and kindness would think helping friends to better themselves, rather than defending poor behavior or in this case, grammar, would be both courteous and kind...But you're the expert(?)

[humblegunner]

I apologize, I did not realize she was foreign.
I assumed, incorrectly, that she was a disruptor.
My most sincere apologies for the razzing.
Welcome, SevenofNine!!!