I think it was "lost case" (like a koan), not "cause", for what that's worth.
On both occasions (this was the second I've seen recently) that was in reply to comment of yours, where you criticised an answer or a comment -- recently,
- this is not very informative without references etc., it just reads like just so stories
- Like I said, lost case. I will leave this answer for the sake of other people then.
I didn't read Andrei's reply as "started complaining about you" -- I read it as a decision not to address your criticism by posting an addition or correction. And maybe that's right since this site is meant to be for answerable questions, not for discussions (nor arguments).
Incidentally Andrei posted this meta-answer a while ago -- about references etc.
And there were some references in a previous answer here.
I think it takes a bit of effort to ask a good question, effort to write an answer, and effort to ask a good follow-up question in a comment.
You might read this Help topic especially When should I comment? and When shouldn't I comment?
If I do "request clarification from the author" then I think I tend to phrase my comment as a specific question, with a question mark -- not a comment like, "this answer wasn't very informative."