A Christian rebuking an errant person sharply is not synonymous with calling that someone a fool.
How did you think it was?
How did you think it was?
The two aren't synonymous, and I hadn't considered them synonymous. Any connection here is indirect and involves the overall context of the discussion, like the post to which I was responding (#318, which quotes some instances of "fool"). My mention of "rebuking sharply" happened because I noticed something interesting in Titus that may shed some light on the overall concepts of speech and rebuke; I am not conflating the two things.