From a recent ethics opinion of the Colorado Bar Association Ethics Committee, A Lawyer's Response to a Client's Online Public Commentary Concerning the Lawyer (March 2019) (citations omitted):
[G]iven the absence of binding authority, a Colorado lawyer must be cautious when deciding whether and in what fashion to respond to online criticism. For the lawyer wanting to err on the side of caution, the Pennsylvania Bar Association suggests the following language as a potential response:
"A lawyer’s duty to keep client confidences has few exceptions and in an abundance of caution I do not feel at liberty to respond in a point-by-point fashion in this forum. Suffice it to say that I do not believe that the post presents a fair and accurate picture of the events."