That's based on the assumption I saw the announcement and then made a decision to post separately; an incorrect assumption.
The answer to the question - did you know this had been posted already - is no; I did not. It wasn't on here when I searched a few days ago. I wasn't able to post at that time and I didn't search again today before posting. You might then chide me for not having searched again, but that is better than assuming my motivations.