You did not write it on one question. You wrote a general comment.
You did thank your answerers, which was nice, but even so, the comment sounded arrogant.
The comment should have been on the thread that you were talking about.
It was not appropriate to place it as a new 'question'.
There was a reply left saying you should have shown 'us' how to do it.
This reply was whited out because the person was using 'language' to display his/her annoyance.
But he was right.
If you ask a question here, then find out how to do it elsewhere, you should share your new knowledge here.
https://web2.0calc.com/questions/scratch-the-polynomial-help-i-figured-it-out