“Frequently”? When else have I done it?
According to the new search function, you have used the word "mistakenly" exactly twice before in this forum:
1. on
August 17, when you wrote that people
mistakenly assumed that the Balanced Budget Act reduced the deficit.
2. on
April 14, when you wrote that Daniel Snyder
mistakenly believes that he is a good owner.
In neither case did you use the word to "excuse wrongdoing" (as Norville claimed), nor did you use it to defend "the left" (as Norville claimed).
I would therefore conclude that Norville either: A) confused you with a different person, or B) fabricated an accusation out of whole cloth.