The sefer quoted. Was it writted by R’ Chaim, or was all its content reviewed and approved by him? The questions and answers recorded, are they exact word for word citations of both the question and answer or or they summaries of both? For example, do we know that the questioner did not say, I feel very uncomfortable standing there in shul, the only one without a hat or jacket, I feel that all eyes are on me and I have zero kavanah, may I daven beyechidus instead?
I saw with my own eye a response from R’ Chaim that contained all of two words in response to a question sent him. The question asked was “is it true what is recorded and repeated in the name of the Rav (the exact question is not one I want to get into)…. And his response was “lo hadam”. Please forgive me for being skeptical about everything “said by R’ Chaim”.